Grab your calendars, T-Mobile customers, because a new document has leaked out with the purported release dates for several upcoming T-Mo products. The doc, posted by TmoNews, claims that March 27 will be a big day for T-Mobile, with up to four new pieces of hardware hitting Magenta's shelves on the same date. Here's the full list of products named in today's leak, which includes the words "Week of: 2/4/2013" up at the top, suggesting that this is a fresh roadmap:

• T-Mobile Sonic 2.0 Mobile Hotspot LTE: Launching on March 27
• Sasmung SGH-T599 "Codina" in Pebble Gray: Launching in both prepaid and postpaid versions on March 27
• Samsung SGH-T999L Galaxy S III LTE: Launching March 27 or April 3
• BlackBerry Z10 "Lisbon": Launching March 27

Some of those dates were already outed on a T-Mobile roadmap that appeared in early January. However, this new document does reveal that the 4G LTE-enabled version of T-Mobile's Galaxy S III is expected to hit at the end of March, which is good news for folks that are looking forward to seeing what its like to ride Magenta LTE airwaves.

It's also worth mentioning that TmoNews has heard that the iPhone will be hitting T-Mobile in late March. Apple product releases are typically very secretive, though, so it's no shock that the iPhone is absent from both today's leak and the one from January. So now that we've got more information on both the Samsung Codina and BlackBerry Z10, are any of you T-Mobile customers thinking about saving up for one of these upcoming devices?

Via TmoNews