Though Microsoft and Danger are shutting down the old Sidekick data service on May 31, the messaging handheld lives on in the new T-Mobile Sidekick 4G. The smartphone will be available starting April 20 for $99.99 with a two-year contract and after a $50 mail-in rebate.
The Sidekick 4G adds Android 2.2.1 Froyo and a touch screen. There are also enhanced messaging features, including Group Text and Cloud Text, which is a Web-based app that lets you send and receive messages.
The handset features a 3.5-inch, 480x800-pixel touch screen with a "pop-tilt" slider design. When open, you get access to the five-row QWERTY keyboard, which we found to be excellent. It's roomy, and the keys provide a nice tactile feedback.