PSLS recently reported that the ESRB had revealed 13 new PSP titles.
One specific title, Finger Connection seems to suggest that a touchscreen is coming for the PlayStation Portable or maybe even a PSP phone or PSP2 (although the platforms for these games do not suggest this). Take a look at the game's description:
"This is a multiplayer party game in which players spin a wheel that tells them to place their fingers on colored spots on a board. Players lose if their hands become too twisted to place their finger on the chosen spot."
This game sounds a lot like Twister, but I don't see how it could be any fun if you were playing it with digital fingers. In fact, all 13 titles seem to fit perfectly with touchscreen gameplay, so is a touchscreen PSP or the elusive PSP phone coming sooner than we thought?