As expected, and despite the fact it did so on April 1st, RIM on Wednesday launched the BlackBerry App World, the RIM answer to Apple’s own App Store. BlackBerry App World, besides being the store itself, is an app you download from RIM’s site. System requirements for the app: BlackBerry® Device Software version 4.2 or higherBlackBerry smartphones with trackballs or SurePress™ touch screenBlackBerry App World is only available to customers in US, Canada and UK and may not be available on all networksBlackBerry