I have not tried it, but the read is good. 🙂

aaannd here is the link.

I did not see anything to make me change the jailbreak I already have, but here is new in 2.5

 - QuickPwn Support for 2.0/2.0.1/2.0.2

 - Root partition resize support

 - Installer support

 - Basic / Expert modes

 - Wizard style interface

 - Automatic updater

 - Support for WinXP and Vista 32/64bit.