An 11” iPad with integrated keyboard. Yes: iOS, touch-screen, forward-facing camera, apps, 3G+WIFI. No: optical drive, browser plugins. Maybe: bundled with iWork, detachable (bluetooth) or convertible (a la ClamCase) keyboard, widescreen format (1280x720?), file browser.
This could be the iOS device to totally shatter the “iPads are for consumption not creation” maxim.