HTC's first entry into the tablet market, the Android-based HTC Flyer, hasn't grabbed much market share, but give credit to HTC for trying to think differently: The 7-inch Flyer includes a stylus, of all things, on the theory that there are applications where you want an alternative for taking notes to using your finger or tapping a keyboard.
But the process is slow and cumbersome, on account of the neurobiological irony that thinking about something--like visualizing tapping your finger on a desk--is often harder than doing it.