The Thunderbolt becomes more and more irrelevant each day. The early adopters have mostly moved on from this device in favor of more powerful and efficient devices. For the few, and proud Thunderbolt crowd a developer that goes by "santod040" has taken the Official OTA ICS update that came out not to long ago, and rooted and deodexed it! He was also nice enough to package it into a flashable.zip. He has included both a full version and a debloated version. He has removed the following apps from the debloated version Adobe Reader, Backup assistant, Books Tablet, CityID, Kindle, My Report Agent, My Verizon, NewbayVaultMarket, Polaris Office, RockBand (wow this device is old!), slacker radio, tethering guard, tune wiki, vcast tones, vznav, vzw golf, and vzw remote, tool.
You will need to be S-Off, and rooted with a custom recovery to install this Rom. You will then install the radio/baseband first followed by the version of Rom of your choosing. Is anyone out there still making good use of this device? I am curious