This morning T-Mobile announced the upcoming G2 Android smartphone and posted a teaser site for the device.  The T-Mobile G2 will be the first handset from the wireless carrier to work with its growing HSPA+ “4G” data network.

Additional details about the G2 were absent the announcement. We know that the G2 will replace the aging G1, which was the first Android-powered phone on the U.S. market.  We also assume that, like the G1, the T-Mobile G2 will be built by HTC.

T-Mobile announced in July that its HSPA+ network upgrades would be deployed to serve 185 million people by the end of 2010.  Under perfect – but likely never-to-be-seen – conditions, the HSPA+ network can provide up to 21Mbps download speeds to handsets and wireless modems.

We’ll post more information on the G2 as it’s made available.

Just in case you needed reminding, the Motorola Droid X and T-Mobile Samsung Vibrant are here – today.  The two Android-powered smartphones have been anticipated for months; one, a keyboard-free update to a popular Motorola handset, the other the first of many Galaxy S Samsung smartphones coming to United States wireless carriers.

The retail price for the Droid X with a two-year Verizon Wireless contract is $199; WireFly has it for $179.  The Samsung Vibrant is also $199 at T-Mobile after a $50 mail-in rebate; Amazon has it for $149 shipped.

Android fans – today’s a good day.

Already have one of these new phones?  Let us know how you like it in the comments section.

Motorola and T-Mobile are teaming up again, announcing yet another MOTOBLUR “augmented” Android phone, the Motorola Charm.

This Messenger-class Android phone is somewhat of a novelty; most Android handsets are slab or slide-to-hide smartphones.  The charm has a BlackBerry-style front facing keyboard for quick text messaging, Tweeting, or email, and a screen wider than it is tall (landscape).

Charm  has the BackTrack trackpad found on the Motorola Backflip on its rear.  Other features include Android 2.1, a 2.8-inch touchscreen display, a 3MP camera, 802.11b/g/n Wi-Fi, Bluetooth 2.0, up to 6.5 hours of talk time and a microSDHC slot for up to 32GB of storage (the Charm ships with a 2GB microSD card).

T-Mobile will release the Charm “this summer” in Cabernet (seen left) and Bronze.

Read the Motorola Charm Press Release