Research In Motion (RIM) made a handful of application-developer-related announcements at its third annual BlackBerry Developer Conference (DevCon) in San Francisco, including the unveiling of the brand new BlackBerry "PlayBook" tablet computer and the introduction of new app development and monetization utilities. But the BlackBerry-maker also announced some fairly impressive statistics on BlackBerry use.\nTyler Lessard, RIM VP of Developer Relations, on Stage at DevCon 2010I won't waste too much space pontificating on the numbers, some of which have been published before, since I think they mostly speak for themselves. But for a company that seems to be increasingly on the receiving end of media- and analyst-lashings, RIM's BlackBerry numbers sure do look good on paper. BlackBerry by the Numbers50 million BlackBerry subscribers worldwide \n\n\n150 million BlackBerry smartphones sold to date12.1 million BlackBerry smartphones sold in the second quarter of 2010BlackBerry is the #1 smartphone in both North and Central America, based on subscribersRegistered BlackBerry application developers total more than 300,000Current BlackBerry Enterprise Server (BES) installations total more than 250,000More than 25 million active BlackBerry Messenger (BBM) users RIM is currently adding about 1.5 million new BBM users each month, or roughly 2000 BBM users each hourAbout 35 million people use BlackBerry App World, RIM's mobile software store, every dayBlackBerry App World now sees an average of 1.5 million application-downloads a day More than 75 percent of all BlackBerr App World apps are downloaded to smartphones running RIM's BlackBerry 5.0 or BlackBerry 6 operating systemsAS Al Sacco covers Mobile and Wireless for CIO.com. Follow Al on Twitter @ASacco. Follow everything from CIO.com on Twitter @CIOonline. Email Al at ASacco@CIO.com.