I've got a desire for a lightweight, tablet device (about the size of an A4 piece of paper or so) for use in the home when planning things (romantic getaways, looking at maps etc.).

Effectively, the TechCrunch tablet - but, y'know, really real.

However, it'd have to be cheap to justify the few times I'd use it (but when I did, I'd love it); it'd have to have a docking station to keep it neat somewhere in the living space of the house; it'd have to have a nice fast processor (OMAP3 might do).

Unfortunately, I don't think such a device is feasible (unless it's an RX-71 ;-))