yes 5 systems, at the same time, old psp 2000s will play with the go very nice
And yes if i were you i would download the games to PS3 not via Media Go
Oh yeah also if you go through the minis section heres one thing to remember, starting Dec 17 all minis will be playable via PS3, right now (if you have firmware 3.15) a se;ect few will work.