This post has kindly been continued below
Please note, I do not add ALL new apps etc, some dev stuff and things like themes are not added to keep this from getting cluttered.

PC/MAC Apps
iPhone Tunnel Suite (PC) Lets you tether your phone and file browser Website
iPhone PC Suite (PC) Range of different functions Website
DiskAid (PC and MAC) File Browser Website
Media Monkey (PC) iTunes replacement (support for 2.0 is coming) Website
iBaReS (Mac) Backup and restore solution Website

Installer 4.0
Still in beta.

Installer Repositories
A27 Dev Team: http://a27dev.com/installer/repo
BigBoss:http://apptapp.thebigboss.org/repofiles/installer4/
GPDA: http://gpda.ru/r (Tweaks)
Hackint0sh: http://hackint0sh.org/repo/ (Hackint0sh official)
Handheld: http://i2.handheld.com.vn/ (Community sources)
iClarified: http://installer.iClarified.com (Repo Sources)
iFon Norway: i.iFon1.no
iSpazio: http://repo.neolinus.org/ispazio/
Modmyifone: i.modmyi.com (Community sources)
Navco: http://www.navco786.com/repo (UK Edge Settings)
RiP Dev: http://i.ripdev.com
Sendowski: http://sendowski.de/iphone/
Ste: http://repo.smxy.org/installer4/


Cydia
Released, growing app support daily.

Cydia Repositories
BigBoss : http://apt.bigboss.us.com/repofiles/cydia/
Free Coder: http://iphone.freecoder.org/apt/
Hack&Dev.org: http://iphone.hackndev.org/apt/
iFonetec: http://app.ifonetec.com/cydia/
Intelliborn: http://intelliborn.com/cydia/
iPhone Video Recorder http://www.iphonevideorecorder.com
iSpazio: http://ispaziorepo.com/cydia/apt/
ModMyiFone: http://modmyifone.com/repo/
SaladSoft: http://nickplee.com/cydiasource/
Ste: http://repo.smxy.org/cydia/apt/
Steffwiz: http://steffwiz.webs.com/iPhone/Repo
Telesphoreo Tangelo: http://apt.saurik.com/
Urban Fanatics: http://urbanfanatics.com/cydia/
Weiphone Source http://app.weiphone.com/cydia/
ZodTTD: http://www.zodttd.com/repo/cydia/

Working Apps
- 2.0 Safari Patch (cydia) Adds file:// support in Safari for viewing files offline
- AppBackup (cydia) Backup and restore App Store Apps Website
- AppFlow (cydia) An application launcher using coverflow Website
- AirHockey (cydia) An airhockey game Website
- BiteSMS (Installer) Send cheaper SMS’s Website
- Book Reader (cydia) HTML Book reader
- BootNeuter (cydia) Official unlocker for 2.0 Website
- Boss Tool (cydia) Moves hardisk space around
- BossPrefs Safari DownLoad Control (cydia)
- BossPrefs (cydia) Number of settings tweaks Website
- CallME (installer/cydia) Tapdial clone
- Catagories (cydia) Sort your apps into sub folders Website
- Customize (cydia) customizes the look and feel of the phone Website
- Cycorder (cydia) free iphone video recorder
- dict (cydia) Client for accessing online dictionaries
- Dock (cydia) quick app switching Website
- Erica Utilities (cydia) A collection of command line utilities Website
- Enhanced CTorrent (cydia) A bittorrent command line client Website
- FileViewer (cydia+Installer) Reads local files like PDF, HTML and images
- Flixwagon (Installer) Broadcast to flixwagon.com Website
- gpSPhone (cydia) Game Boy Advance Emulator Website
- GRIS (Google Reader iPhone Sync) (cydia) RSS client for google reader
- gTxtEdit (cydia/Installer) A text editor for 2.0 Website
- iBlacklist (cydia) filter incoming/outgoing calls/SMS Website
- iCaller BR (cydia) Clear individual calls from your history
- iCommander (cydia) Small file manager Website
- Insomnia (cydia/installer) Allows applications to continue running in sleep mode
- Intelliscreen (cydia) Calendar, Mail, SMS, News Sports and weather on Lock Screen Website
- iPhone Video Recorder (cydia) remember to add the repository, Cycorder is free Website
- iReboot (cydia) Easily reboot and respring your iphone Website
- iTextUploader (cydia) store your SMS’s at youarchive.it Website
- Kate (Installer) A collection of tools and toys for iphone
- Keyboard Autocorrect disable (Installer)
- Lighttpd (cydia) Website
- Lockdown (cydia/Installer) Password protect applications
- Macman (cydia) A pacman clone
- Make It Mine (MIM) (cydia) Change your carrier name
- Metronome (cydia)
- MiVTones (cydia) Video ringtones
- MobileTerminal (cydia) a command line terminal Website
- ModPlayer (Installer) Mod player that supports a huge variety of formats
- MxTube (cydia) download youtube videos
- NemusSync (Installer) sync iPhone calendar with Google calendar Website
- NES (cydia) NES emulator
- openSSH (cydia) Website
- OfflineMaps (cydia) Use a pre-downloaded map in Maps.app Website
- PhoneZap (Cydia) Send geo-tagged pictures Website
- Poof (cydia) Hide icons
- Power Tool (Installer) Enable verbose boot, power down, reboot etc
- Pysl (cydia) call and sms filtering Website
- Qik (Installer) Live video streaming to the web Website
- Quake4iPhone (cydia) Quake…. For iphone Website
- Rename (Installer/cydia) Renames apps
- Respring (cydia) Resprings apps Website
- Safari Download Control (cydia) Download stuff, with Safari
- ScummVM (cydia) Play old school games Website
- Scrobble (cydia) Scorobbles stuff somewhere with something
- SMSNotify (cydia) vibrates your phone periodically when you have an sms
- Snapture (cydia) camera application Website
- Snes4iPhone (cydia) SNES emulator Website
- Springboard notifier (cydia) notifies SB that app was changed
- SwapCameraRoll (cydia) swaps cameras roll
- SwapTunes (cydia) lets you have 2 music libraries Website
- SynchStep (cydia) adjusts your music to your walking pace Website
- Talking Alerts (cydia) Talking alerts for SMS and mail etc
- Tapdial (cydia/installer) Adds one touch dialling Website
- TextReader (cydia) View TXT and PALM Doc format.
- Tivo Remote (cydia) A TIVO remote
- TuneWiki (installer) Media player that automatically downloads lyrics Website
- Whirlwind 21 (cydia) Solitaire
- Wifi Toggle (cydia/installer) A Wifi toggle
- WbApp 0.32 (cydia) A WinterBoard theme displaying/modding application
- Wiki2Touch (partially working) Website
- WinterBoard (cydia) Open Source Summerboard Website

Need help?
Install a repository in Cydia here
Install a repository in Installer here
Fix some Installer problems here

Just a quick correction... its going to be Installer 4.0 now...

__________________
3.0 pwned , 3.1.2 NOT

Fring & iWoman DONT!

Cydia isnt working for me. When I click all Packages, I just get a blank screen.

__________________
Week 34, 4GB iPhone

Firmware : 2.0
Baseband : 04.05.04_G
Bootloader : 4.6

Carrier: Singtel (Singapore)

Unlocked : Yes
Jailbroken : Yes
Activated : Yes

If this post has helped you, please rep me by clicking the thumbs up sign located to the directly to the left of your screen.

NES emulator is working on 2.0 according to the development site, apperantly he only had to change 5 lines of code for it to work. Lets hope its that simple for all the developers :
http://www.zdziarski.com/
July 20, 2008: NES.app Lives on for iPhoneOS v2.0


ps: someone should sticky this thread

Check here for updates on Installer 4.0

It seems that Nullriver have given full control of the installer project to Rip Dev.

__________________
UK Pwned 3.0 iPhone. Successfully connected to the Orange UK Network.

If I helped please give a thumbs up , Thanks (Leave your username and I'll try to give you a thumbs up back)

Hackintosh finally working, thanks to icchansan - Want Mac on your PC ? Start by reading this FAQ

REMEMBER; SOME PEOPLE ARE LIKE SLINKIES, TOTALLY POINTLESS BUT FUN TO PUSH DOWN THE STAIRS!

Has anyone actually got something installed from cydia?, Everytime I try to install something it freezes and then the phone gets stuck on apple/pineapple and a restore is needed. I did get openssh installed and tried to install apps manually but that had the same results of apple up forever. Hope installer 4 comes out soon...

can u please explain to me, or point me to a tutorial on how to use cydia and how to add sources (for the future when more apps are available)

__________________
:iphone: iPhone 8GB 1.0.2 OTB --> 2.1 Pwnage Tool
MacBook Pro OS X SNOW Leopard and Sony Vaio Windows XP :hack:

You can find a decent explanation of cydia near the end of this page