Bellevue-based T-Mobile USA is releasing the Sidekick 3 today with a launch party in Los Angeles.

Earlier versions of the device have a loyal Hollywood following, and T-Mobile customers will be able to buy the new one online starting June 28. It's expected to become more broadly available at T-Mobile stores and online July 10.

The device is a decent upgrade from the Sidekick 2. It comes with Bluetooth, a MP3 player, a 1.3 megapixel camera and is 20 percent smaller making it feel more like a phone than a two-handed device.

One of the items below talks about what happened when a Sidekick left in a taxi wasn't returned to its rightful owner. Imagine if it were a more feature-rich Sidekick 3. Check it out here.