We know that T-Mobile has expressed their support of RIM’s Blackberry 10 platform and products. While that is good news for Blackberry fans on T-Mobile’s network, the question we have to ask is when will T-Mobile actually launch a Blackberry 10 device? Thanks to the folks at TmoNews who managed to get their hands on a leaked screenshot of T-Mobile’s roadmap (alleged), it would seem that the Blackberry 10 Z1 will be released on T-Mobile’s network come 27th of March. RIM has provided a rough timeframe of the Blackberry 10 devices launch which is set for Q1 of 2013, although back in 2012, RIM’s COO said that Blackberry 10 devices will be made available 30 days after launch, so the 27th of March date seems to be kind of late. However given that US carriers tend to be a bit slow when it comes to pushing out updates amongst other things, we guess this isn’t surprising. Presumably this would mean that the Z10 will be available for purchase unlocked although we guess you’d still need to get a Blackberry plan with your carrier if you wish to use it. Anyway hopefully more information about the Z10’s launch and its dates will be provided shortly, so be sure to check back with us then for the details.