E3 2009: Sony PSP Go to be revealed tonight

Sony will host its press launch at the E3 Electronics Expo in Los Angeles at 7pm tonight, and it's widely expected to launch a new slimmer, lighter version of its PSP games console, the PSP Go.

We've already written a preliminary news story, but here are some more pictures leaked ahead of tonight's launch.

We'll bring you full new coverage of the Sony launch as it happens.