If there is some big crisis in Japanese game development, then the PSP and PS Vita provide a rich vein for the defence. Its just a shame it takes so long for us to see them. I'm thinking Grand Knights History, Gravity Daze and now Orgarhythm.
The music/strategy game from the Space Channel 5 dude, unveiled yesterday now has an official site with a couple of laid-back tunes to enjoy (hold your cursor over the music note to swap, Elyata is fine, 430 grates after a while [about 10 seconds, actually]). Check out the first pics here.
Another PS Vita game getting an official site is Dokuro, which brings a rather Tim Burton style to the (guessing) puzzle/platform game. Not much info there but expect it to populate in the coming weeks.
Finally we have Namco's teaser site for a PSP game that seems to be for Hunter x Hunter, a very popular manga, which should sell by the truckload. While none of these may be classical AAA titles, invention and style (in the case of the first two) will go a long way to building an audience.