I work for Magmic Games, and we recently released a tower defense game ... 3rd Party BlackBerry Software forum
Tower Defense game for Blackberry: Self Defense
I work for Magmic Games, and we recently released a tower defense game for Blackberry called Self Defense. It's a bio-defense where you fight off waves of infections using things like antibiotics and white blood cells.
You can check it out here: http://www.bplay.com/rl/selfdef/item/SelfDefense
I love those tower defense games for the PC. This screenshot definitely has a different look to it. I'll have to check it out.
BlackBerry8100/220.127.116.11 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100