Tablet Apps I'd Like To See

Ink Passwords - I'd like to be able to sign into my computer by actually signing in to my computer. Scrawl your John Hancock and log in. We can't be too far off from this, considering how good Microsoft's handwriting recongnition is. I figure you could spend thirty seconds training it to recognize your signature based on strokes and speed, and it should work reliably.

Fun With Accellerometers - The M4 has an accellerometer built into the unit. I'd love to see someone hack into this and create a game similar to the "Slate Labyrinth" that actually makes you twist and turn the Tablet in order to play it. For what it's worth, Toshiba's Accellerometer Utility will let you take actions or launch applications by tilting the Tablet, which is pretty close.

I'm sure I'll think of more when I've slept a little.