yes for PS2 also. but unless you are a diehard fan, I'd buy gp3, 2, or 4 before 08 because it has traded hands and some of the feel is not quite as good as the older versions. 7 got bad reviews also. or if you are a fan of the 08 season, go for it. it is playable.
I highly recommend the much underrated SUZUKI SUPERBIKES TT for PS2. GREAT street riding game - the entire ISLE OF MANN island track and it's sub routes. Its great to speed through the country side and 150 thru a city! it's not like track riding at all, more like street riding like most of us ride