iH8sn0w has just confirmed that he will be releasing another update of Sn0wbreeze 2.5 which will be addressing mainly to Apple TV 2G users. The exact changelog of Sn0wbreeze 2.5.1 is not known yet but the update will be related to the NitoTV app which allows you to play emulator games and GBA roms, read RSS feeds and view 3-day Weather forecasts on your Apple TV 2G.
sn0wbreeze 2.5.1 should be out sometime tonight. Working on the Apole TV 2 a bit. Props to @nitoTV btw :)
The update might also bring a fix for iTunes 1002 & 37 error which was mainly experienced by those iPhone 3GS users who tried to restore iOS 4.3.1 custom IPSW (iPad baseband) made with Sn0wbreeze 2.5. We'll be updating you as soon as iH8sn0w will drop Sn0wbreeze 2.5.1 with its official changelog. Mean while if you want to jailbreak your Apple TV 2G on iOS 4.3.1, you can always use Seas0nPass or official PwnageTool 4.3 by iPhone Dev-Team.
Update#1: Sn0wbreeze 2.5.1 will feature custom boot logos for all iOS 4.3.1 iDevices!
Update#2: Sn0wbreeze 2.5.1 Released [Fixes iTunes 1002 & 37 Error, Boot Logos, Cydia 1.1.1, DFU Instructions & Afc2 for ATV2G]
Update#3: Download Ultrasn0w Fixer to Unlock iPhone 4/3GS on iOS 4.3.1 [Unofficial]