Dailygame discusses low software sales and the relatively small install base of the Sony Ps3 Console:
The install base of the PlayStation 3 is too small for some key developers' tastes, say analysts with theSimExchange, and the PS3 being the lowest-selling game system during the 2007 holiday season isn't likely to help matters.
In October and November, the first-person shooter market -- which analyst Jesse Divnich says can only support two premier titles at once under normal circumstances-- was dominated by The Orange Box and Halo 3 on Xbox 360, while November and December were dominated by Call of Duty 4 and Halo 3. On the PS3, however, The Orange Box saw particularly low sales.
"Unfortunately, the PS3 has such a small install base it is unable to successfully support two first-person-shooters in the same month," said Divnich. "This theory will likely hold true for other great titles under the same genre, with Uncharted: Drake's Fortune and Ratchet & Clank Future: Tools of Destruction cannibalizing each other's sales in December."