With the keyboard and case, shown in the photo below, iPad looks more like a laptop than a tablet computer. The KeyCase iPad Folio with Integrated Bluetooth Keyboard sells for a price of £59.95 in the UK through gearzap.com. With recent approval from FCC, it might also be available in the US soon.
Apart from using as a regular keyboard, the product also protects the screen when travelling and not in use. The keyboard needs a separate charge through regular iPod USB cable.