The WikiReader is a funky Hitch-Hikers Guide style gadget that gives you Wikipedia in your pocket. I love the form, the touchscreen, the low power consumption, the low price and that it uses a MicroSD card. You can subscribe to bi-annual updates and they will post you the cards, or you can download the (4GBs of) data yourself.
I’m waiting for an e-reader gadget like this, but the size of a paperback, that allows you to put any data on the card to read. Ideally running some flavour of Linux. And none of this copy protection nonsense!
That’s all I want.