Mark your calendars, BlackBerry fans: BusinessWeek says RIM's going to launch the BlackBerry App World April 1 at CTIA. What's more, the company is apparently planning on going after Apple by courting developers with higher profit margins and the relative sophistication of the average corporate BlackBerry user, which explains that minimum $2.99 paid app price we saw a few weeks ago. An interesting move to position the new service, but we'll see if it takes hold with users -- anyone ready to blow their budget on 'berry software?[Via
