T-Mobile’s Sidekick 4G will apparently be coming out on Aptil 20th, according to a recent tweet on Radio Shack’s twitter feed. We have yet to receive any word on T-Mobile’s part to make this official but we wouldn’t be surprised of the release date. April 20th is also the rumored date for the release of LG’s G-Slate and G2x for T-Mobile’s network. If this is all true, then get ready for April 20th, it’s going to be a great day for all those T-Mobile folks itching to get their hands on these new devices. While you wait, you can always check up some videos on the Sidekick 4G that show of its features so that you know what to expect once you get your hands on it. Which device will you be picking up come April 20th?