Now, Verizon has put up a support page for the Android 4.0 update for the HTC ThunderBolt. The site reveals some of the new features such as Face Unlock, Lock Screen Notifications (which allows you to access your notifications even when the phone is locked) and a Usage Center where you can monitor data usage and set alerts. The Recent Apps feature allows you to tap on a thumbnail to multitask with a recently used app.
Also included with the update is Verizon Remote Diagnostics which lets a technician look at the inside of your phone from a remote location. And the update also eliminates the bugs that made the device unstable and caused numerous re-boots. Lastly, Verizon Apps, Blockbuster, Rhapsody, Verizon Video and Mobile IM have all been removed from the device. Those with the HTC ThunderBolt will feel like they have a new phone once the new OS build is installed. The only problem is that there is still no date for the update which once again is said to be "coming soon".
source: Verizon, AndroidPolice via IntoMobile