PlayStation Plus service tomorrow, March 10, with the launch of online storage for PS3 game saves. As part of the $50 per year subscription, members will get 150MB of space in "the cloud" for up to 1,000 save files. Copy-prohibited files can even be backed up, with the caveat that users can only restore files that have been deleted from their systems once per 24 hours.
Future titles will offer the ability to save directly to PSN, Sony says, bypassing your local HDD entirely. The new feature is being introduced in PS3 firmware v3.60, which rolls out tomorrow, so factor the obligatory download into your game-playing schedule accordingly.