Notcom has updated TinyUmbrella to v5.00.06 that includes support for iPad 2 GSM/ CDMA. According to source:
Notcom has released TinyUmbrella 5.00.05 that makes possible for users to save iOS 4.3.4 SHSH blobs for iPhone, iPod Touch or iPad.
The iPhone Team has released update of RedSn0w 0.9.8 b3 to jailbreak iPhone 4, 3GS, iPod Touch 4, 3G and iPad 1 on iOS 4.3.4 which is a tethered jailbreak.
The iPhone Dev Team has released Redsn0w 0.9.8 beta 3 to jailbreak iOS 4.3.4 for iPhone 4, 3GS, iPod Touch 4, 3G and iPad 1, but iPad 2 users are out of luck and if they get upgrade to iOS 4.3.4 then their device will lose jailbreak.
Apple has released iOS 4.3.4 for iPhone 4, 3GS, iPod Touch 4, 3G, iPad 1 and iPad 2, along with iOS 4.2.9 for Verizon iPhone 4 that includes fix for PDF vulnerability which is used by Comex in JailbreakMe 3.0.