HTC has been the leader of 4G Android Devices. They are definitely the most known probably because they have been the "first" on a per-carrier basis. They are continuing this trend with yet another first, this time on Verizon's LTE.
The HTC Thunderbolt will be announced on January 6th at, you guessed it, CES 2011. If you would like a way to receive information directly from the source as soon as it's made available, check out their new page featuring the email sign up program.
You can sign up over at HTC's 4G site.