If your Verizon iPhone is stuck at the boot logo after using the JailbreakMe.com, simply restore and jailbreak with the updated JailbreakMe.com site.
If you have not backed up your device and do not want to restore for fear of losing data, try Comex's fix here: http://a.qoid.us/verizon-iphone.html
There is also an essential update in Cydia if you jailbroke your device prior to this evening. Just launch Cydia and you will be notified of the update.
Sent from my iPad