Get ready, BlackBerry users, because your days are officially about to become less productive (or, at the very least, your mass transit commutes). You too, iPhone types -- not to say you didn't already have enough time-wasting apps cluttering that 8 to 16GB wasteland you call "storage" in your pocket -- because SlingPlayer Mobile is destined for both of these platforms. BlackBerry's already had it since December in beta form, but they're now at a stable 1.0 release; and speaking of 1.0 releases, that iPhone version Sling's been talking up for a while now has now been submitted to Apple's App St
