AIM productions is a new developer of BlackBerry games. They have just ported some of their games to the BlackBerry and to celebrate they are offering Bubble Popper for free. Sadly it only has Desktop install files but it looks pretty cool. You can pick up the free download at this link. I am not sure how long the free game will be available for but I can confirm it works now. The game is compatible with devices running OS 4.0 or higher, including 83xx, 88xx, 87xx, 81xx, & 7130.
UPDATE: OTA download links seem to be available at this link
They are also offering 30% off all of their other BlackBerry games for a limited time. To get the 30% off you have to head over to this link and use the coupon code berry007. I have not had a chance to try out their catalog but they have over 60 Windows Mobile games which they may be porting to the BlackBerry. Looks promising for time wasters but not yet up to the quality of Bplay and other BlackBerry game developers.