Hi,
I have new iPhone with (out of the box) iOS 4.3.4,
so No SHSH = No downgrade to 4.3.3

As of now, No untethered jailbreak for 4.3.4, & probably never will !

So,
Is 4.3.4 "Tethered Jailbreak" better ? then say

iOS 5.0 b4, "tethered jailbreak" ?
Non developer = I have to use activation hack.

If Apple releases 5.0 b5,
Is it compulsary for me to update to 5.0 b5, or I can still use "b4" ?

And, In a Tethered Jailbreak, (4.3.4 or 5.0 b4)

If a reboot of iPhone is done (without PC),
will the iPhone boot in "Non-jailbroken " state ?
or will it go in recovery mode ?

If you are not a developer, stay with iOS 4.3.x until iOS 5 exits beta.

Also, you need to ask yourself, is it worth dealing with a tethered jailbreak? Think about the reasons you want to jailbreak, are they things that you cannot live without for a few months?

Just adding my 2c -- as someone who played with both 3.0 and 4.0 betas, I distinctly do not want to go through that hassle again. I side with Olethros very much in that if you are not an app developer, you really don't want to be playing with the betas. They cause a lot of problems, force you to keep upgrading every few weeks when new ones come out, break things if you restore from backups, and ultimately don't provide a working upgrade path -- if you go from 4.3.4 through all of the 5.0 betas and then go to 5.0GM when it comes out, I can almost 100% guarantee you will see sporadic and hard to troubleshoot issues that will only be resolved by completely wiping the phone and setting it up as new.

If you're looking for a headache and don't mind having your arms up to your elbows in your tech, then by all means -- 5.x beta away . If you just want your phone to work and like having a jailbroken device, stay at 4.3.x for the moment, even if it's tethered.

Originally Posted by isawugoing

Hi,
I have new iPhone with (out of the box) iOS 4.3.4,
so No SHSH = No downgrade to 4.3.3

As of now, No untethered jailbreak for 4.3.4, & probably never will !

So,
Is 4.3.4 "Tethered Jailbreak" better ? then say

iOS 5.0 b4, "tethered jailbreak" ?
Non developer = I have to use activation hack.

If Apple releases 5.0 b5,
Is it compulsary for me to update to 5.0 b5, or I can still use "b4" ?

And, In a Tethered Jailbreak, (4.3.4 or 5.0 b4)

If a reboot of iPhone is done (without PC),
will the iPhone boot in "Non-jailbroken " state ?
or will it go in recovery mode ?

sure its tethered but thats not to big of a deal for most people you know like your phone never dies much. and if you want to but not recommended. you can always downgrade from the betas. i put my iphone 3Gs on beta 4. got bored with it and a restore back to 4.3.4 or 4.3.5 is still possible. its just more work if you ask me though. but it works just to play with beta for a bit.