An HTC teaser poster is suggesting that HTC will mark another 4G first on January 6th. The company was the first to unveil a 4G phone, the HTC EVO 4G, and the first to offer a 4G phone for T-Mobile USA, the T-Mobile G2. Now many expect it to be the first to unveil a 4G LTE phone for Verizon.
The timing suggests that Verizon CEO Ivan Seidenberg could announce the device during his keynote. Verizon has also planned a separate 4G-specific event on the same day giving it a second announcement opportunity.
The device in question is likely the HTC Incredible HD (codename Mecha). A separate rumour suggests that it could end up being known as the Thunderbolt (part of the DROID family perhaps?).