Sn0wbreeze 2.2.1 update is out for jailbreakers. The developer has now pushed the new update of Sn0wbreezetool to fix issues related to Verizon iPhone (iOS 4.2.6) and iBooks. The Sn0wbreeze 2.2.1 also patches the annoying Windows Classic issue, and it has got Drag & Drop IPSW feature too.
If you’re facing iREB problems on your iPhone 3G, Sn0wbreeze will automatically fix it in this updated version.
sn0wbreeze 2.2.1 now at http://ih8sn0w.com (Fixes Verizon iPhones, iBooks 100%, Drag & Drop IPSW implemented, and Windows Classic issues).
oh, and it also fixes iREB issues for the iPhone 3G on “Waiting for iBSS” for some machines.