System Prisma has been busy working on a PC version of ClaDun x2 and their first PlayStation 3 game Legasista. Somewhere between these projects they found time to improve their 2010 tower defense game Dot Defense.
Dot Defense version 1.03 is available now which has faster map processing and tweaked battle scenes. If you have Dot Defense you can get the update for free via PlayStation Network. Always nice to see a developer continue to improve on their work and release an update for free.