It was in April earlier this year when we brought you news that BlackBerry and T-Mobile have parted ways because of a U.S. licensing agreement, and not too long after that, T-Mobile offered their subscribers a $200 incentive in order to “upgrade” to a Samsung, although if you were to look at it from a neutral standpoint, it would be more of a change of hardware than an “upgrade”. Still, it seems that as many as up to 50,000 T-Mobile subscribers actually decided to switch to other smartphones from a BlackBerry since then, at least according to an internal memo.