Not all of the numbers are bad around RIM headquarters. The company's celebrating the big three billion -- that's the number of app downloads it's seen since the launch of App World. According to RIM, that number amounts to 2.5 million downloads a day -- certainly nothing to sneeze at. Naturally, Research in Motion is using the opportunity to do some "myth busting," regarding the perceived lack of selection for BlackBerry handsets and the PlayBook tablet. At present, there are 90,000 apps "up for sale" through the mobile app mar
