We knew that this BlackBerry clamshell would stick to T-Mobile whenever it will be released, but this new rumor about its price is something we couldn’t foresee. CrackBerry has been hearing many a birdie point at a $49.99 price tag, roughly the same that you would pay for a Moto Razr on T-Mobile with a two-year contract. That would just about make the Kickstart the cheapest smartphone when it comes out most probably in September, and T-Mobile might have a chance to stop some of its customers from hopping on to the iPhone 3G bandwagon, all set to roll in a week’s time on AT&T. But as with all rumors, we can’t help but be skeptical and hope RIM/T-Mobile makes it official in the coming days…