Sony announced during their GamesCom conference this evening that a set of mini-games, known simply as Minis, will be available from October 1: the day the PSP Go launches in Europe. They are 100Mb in size and will be available from the PS Store at launch and downloaded directly from the PSP.
SCEE president Andrew House promised that an extensive line-up of the games will be available, all the way from the PC and mobile game markets.
It's unclear if this will work with older PSP models.
Read what happened during the conference here.