HTC has let slip via a full-page ad in the latest issue of Rolling Stone magazine its lineup of 4G-labeled Android smartphones for all the four major U.S. wireless carriers. Android Central spotted the ad showing the G2 on T-Mobile and the EVO 4G on Sprint, the leaked HTC Thunderbolt for Verizon, and a mysterious HTC Inspire 4G for AT&T.
The HTC Thunderbold and Inspire 4G have not yet been officially announced by the company, but a formal introduction is expected this week during the Consumer Electronics Show in Las Vegas. However, details about the Thunderbolt have emerged via several leaks over the past few days.
The HTC Thunderbolt has an 8-megapixel camera (with dual LED flash) and a front-facing video calling camera, alongside a 4.3-inch display and built-in kickstand that hides what looks like a large speaker grill behind it. Other rumors say the Thunderbolt will run on a dual-core 1.2GHz processor, 16GB of storage and an SD card slot supporting up to 128GB. These specs are unconfirmed.
But the most curious appearance in the Rolling Stone ad is the HTC Inspire 4G, apparently bound for AT&T. The only thing is that AT&T does not have an LTE (up to 12 Mbit/s) network operational at the moment, so it's unclear what AT&T means by 4G. Engadget's Chris Ziegler believes this could mean that AT&T is mimicking T-Mobile by labeling its HSPA+ network as straight-up 4G.
Verizon is rolling out LTE to 38 U.S. markets, including Los Angeles, Chicago and San Francisco. The 38 markets cover 110 million people, and coverage in 55 airports is on the table as well. Verizon plans to finish rolling out LTE in all its current 3G markets by 2013. Within 15 months it expects to cover two-thirds of the U.S. population.