Nickelbuddy let me know about this slick tower defense game they have called Fierce Towers. I have quite a few friends addicted to their browser based tower defense games and it is cool to see the trend come to the BlackBerry.
Right now it looks like the game only supports the Storm, 8900, & Tour but hopefully Bold support is coming soon. Definitely worth checking out especially at the reasonable $4.99 price.
Video of game in action after the jump!