I write this a lot, but it’s true: RIM’s BlackBerry 10 launch needs to be a success or it faces almost certain failure in the United States smartphone market and, in the long term, globally. I argued yesterday that the company needs to put a large focus on its app eco-system, and that’s exactly what it appears to be doing. In a recent interview with Forbes, RIM’s chief marketing officer Frank Boulben said that the BlackBerry World store (formerly the BlackBerry App World store) will launch with thousands of applications.

“At launch, we will have more than 70,000 apps available,” he said, while declining to name any popular apps. We do know, however, that commonly used social networks such as foursquare, Facebook, LinkedIn and Twitter will be available, and we’re hoping that RIM has big name gaming companies and other apps, such as Instagram, ready to go as well.

70,000 apps is a far cry from the more than 700,000 iOS and Android applications, but it’s at least a start. We hope RIM has placed a focus on quality over quantity, otherwise that number is basically meaningless. How many tic-tac-toe apps do we need, after all?