The Sidekick returns from the dead on April 20. The ultimate tween messaging device will be made available through T-Mobile and it’ll cost an acceptable $99.99 after a $50 mail-in rebate and new two-year contract with unlimited data. If you decide to go ahead with a low-cost data plan you’ll be forced to shell out $149.99 for the Android 2.2-powered, 4G capable device. More deets on the specs can be found right here. Hop after the break to watch some videos that demonstrate the handset’s super sleek capabilities.