Hey I am running 3.0 OS and have the latest build of the iPhone SDK

I am NOT a registered developer...

Is there anyway I can develop 3.0 apps with XCode?
and if so is there any workaround or hack to let me debug them on my jailbroken 3.0 device without a registered dev account?

And BTW I want to develop apps FOR cydia not app store....

there is no way youll ever code cydia apps using the iphone sdk......... they are 2 totally different developing architectures (well, if you dont count the gcc part in...)

anyways, take a look at this

Upgrading the iPhone Toolchain - Jay Freeman (saurik)

THIS is how you code apps for Cydia..... by the way, ITS NOT EASY, not as easy as the iphone sdk at all..............

Some clarification is needed , seseberg's post is not 100% precise.

Iphone SDK = Apple's toolchain(compiler etc.) + XCode + Limited iphone headers
Community SDK = Open toolchain + all iphone headers.

Javacom has provided a template for using all iphone headers in XCode[the topic is glued]. Not sure if it's 3.0 compatible at the moment..

Hence programming in open toolchain is not fundamentally different than programming in official SDK. There are of course some differences - interface builder in XCode, some minor syntax differences,etc. But the core programming is essentially the same. The biggest difference is the smaller subset of headers[meaning less available libraries] in Iphone SDK.

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Game remake

You can do the following:

1. Create a self signed "iPhone Developer" certificate:
Apple Code Signing Guide
Make sure you call it "iPhone Developer" so that Xcode can find it by default.

2. Apply this patch I found in another forum to Xcode. This makes it skip the provisioning check:
xCode provisioning check patch

3. Install AppSync 3.0 through cydia (you need to add the cydia.hackulo.us repository). Unfortunately this hack and repository has other less noble uses, so cydia warns you about it. It's however needed if you want to run the apps you create on your iphone using xCode.

With the above, I got everything working except debugging. Not sure what's up with that.

radical

Ok, so I figured out what's wrong with debugging: Bypassing the provisioning also bypasses the entitlements.plist packaging and codesigning steps in the build process. Go to this page:

246tNt's corner of web - iPhone stuff

Follow the instructions related to adding a custom build script in Xcode to correctly sign the app with debugging entitlements. Everything is working now... including the performance tools.

radical