Sony has announced a new line of downloadable titles for the PSP and PSP Go, confirming rumors that first surfaced last week. Dubbed Minis, these titles have a 100MB size limit and are exclusive to the PSN Store. The lineup will launch on October 1st, the same day as the PSP Go. These titles will reportedly cost less to develop and, more importantly, cost less for gamers. Sony plans to have 15 snacktivities ready for the PSP Go launch, though 50 games are slated for the rest of 2009. A few titles mentioned during the company's GamesCom keynote include Tetris, Field Runners, Hero of Sparta and Minigore.