Upgrading to 4.3 from 3.1 and tethering

[urrterrible]

I am on AT&T and love my 3.1 operating system. I HATE itunes so I don't update.

I never got the dreaded text from AT&T about tethering violations and I don't want to update to 4.3 and then start getting them. I don't need to unlock.

Am I okay to update to the latest and jailbreak and begin tethering again? I use PDAnet and it works flawlessly.

Thanks in advance...I really don't have the 3 hours it takes to read through all the threads to learn my questions so I appreciate any response.

[iYeow]

Do you have 4.3.3 shsh blob if you want to upgrade. What is your device ?

[urrterrible]

3GS. I like 3.1, I have tethering, backgrounder, sbsettings problem is most apps now require 4.x.x

I read somewhere 4.2.1 is the best for 3GS.

I am grandfathered for unlimited data and I heard the 4.x update allows att to see if you are tethering although I heard the pdanet has a workaround to hide this...

[xboxbml]

Yeah I have 3GS with 4.2.1 jb with greenp0ison rc6.1. 4.2.1 is best for 3GS! 4.3 and above wrecks the phone. Sluggish and jerky. Fluidity is gone...mine works great!