GP just released RC5 B4 which now has the support needed to JB your Verizon iPhone running 4.2.6 You can get it, as always, at http://www.greenpois0n.com The app has always had the capability to update 4.2.6 into JB status, but it needed to be tweaked and that tweak is out. I just ran it, and looks like it went smooth as butter. ** NOTE: This just came out TODAY. My previous post, and other posters, about support in RC5 B2, was incorrect. I've deleted/edited it w/ this one.