Back in January it was revealed that T-Mobile was working with Blackberry and Samsung to bring the BlackBerry Z10 and Galaxy S III to their network. The release dates of those devices on T-Mobile weren't clear, but thanks to newly leaked documents on TmoNews, we might get a better picture. It looks like T-Mobile is getting ready to release the devices anytime between March 27th and April 3rd. T-Mobile will also offer BlackBerry Z10 and Galaxy S III and Samsung Galaxy Exhibit with regular plans and prepaid options. Both devices will offer LTE connectivity. It looks like Spring will be big for T-Mobile.