Sony and a lot of big publishers will show next week at Tokyo Game Show what the PlayStation Portable (PSP) is all about.

Capcom recently confirmed that it plans to make a presentation of PSP software on the main stage, and, although details are scant, the publisher is expected to show off one or other of its three tentatively titled handheld games - Vampire Chronicle (Darkstalkers), Devil May Cry and Viewtiful Joe.

Metal Gear Solid Acid will also be on display and everybody is anxious about Grand Turismo 4 Mobile being on the show, but nothing official was confirmed.