Even before the public release of iOS 5.0 it was known that Apple was to make downgrading much more difficult. You can find more info here.
Although using TinyUmbrella and Cydia users have been able to …

Bad news for jailbreakers, it seems that once Apple start pushing out iOS 5 updates downgrading firmware will be pretty impossible.  It’s all part of Apple’s battle against jailbreaking, as every time Apple release a …

Usually when Apple release a new firmware they quickly stop signing a previous version to stop people downgrading but it seems that for some lucky iDevice owners iOS 4.1 is still being signed.
This info comes …

Tiny Umbrella has been updated so that it supports iOS 4.3GM and uses your system proxy settings when launching it’s loader.
If you did not know, Tiny Umbrella is the program that is used to save …

Saurik, the developer behind Cydia has found a way to downgrade iPhone 3G[S] from 3.1 to 3.0. This process will only work for those who have saved their SHSH to Cydia Server, for more …