"BlackBerry has a thriving ecosystem with BlackBerry 10." That's what CEO Thorsten Heins said this May at a developer conference before revealing that users had a choice of 120,000 apps from its still-young app market, BlackBerry World. The problem is that over a third of those apps come from a single developer. Yes, a Hong Kong-based company called S4BB has published just under 47,000 apps to BlackBerry World since launch. That's not a good sign of a "thriving ecosystem."
This is what happens when the technology press lets itself be dictated by companies. The companies were the ones who started touting quantity over quality when it comes to mobile application stores, and the press played right into their hands. In a statement to The Verge, BlackBerry confirms the issue, but states that it's not actually an issue at all. Of course they say that. They want to keep touting that number.
Companies wanted this to be a numbers game, and now it is. Go into any mobile application store, and 99.9% of the applications in it are crap. Comparing numbers reveals nothing. It never has, and never will.