PS Vita Touchscreen: Yes, It Has One (5" OLED/LCD, Capacitive Multi-touch)

Yes, the PlayStation Vita features a touchscreen.

• Size: 5 inches
• Type: OLED (original 1000 model) / LCD (2000 model)
• Resolution: 960 × 544 (qHD)
• Capacitive Multi-touch: Supports up to 2 simultaneous touch points.

It's used for game controls, UI navigation, typing, and rear-touch-panel interaction (unique to Vita).