see, i think the opposite
instead of focusing on minigames (although they should have those as well), they need to be making into even MORE of a console experience, so that when you are not playing it on the go you can jack it into your tv and use it like a portable ps2.5 (or so)
fully integrated bluetooth dualshock compatibility with support for four controllers
mini-hdmi port with adapter in the box
games which support split-screen/same-screen multiplayer when the unit is connected to a tv
wireless LAN play between two units connected to two tvs
iPhone/Touch has the casual minigame market pretty well wrapped, and nintendo's gonna eat up all the leftovers, so sony has nowhere to go with this other than selling it as a highly portable/powerful console
if i knew i could buy a psp2, throw it in a bag with a couple of ps3 controllers (which i already own), take it over to a friend's house and jack it into the tv, and play a split-screen racer or co-op shooter, i'd pre-order one tomorrow
but if it's just me on the couch playing the same psp games only a little bit prettier, they can keep it