As expected, the BlackBerry App World has just launched for US, Canada and the UK. If your software's updated to 4.2 and you've got a trackball / touch screen and PayPal account, head on over to RIM's website to download. Tell us, is it everything you thought it would be? [Thanks to everyone who sent this in]Filed under: CellphonesBlackBerry App World now live, available to download