Other World Computing has Used Apple Keyboard Dock for the iPad, model no. MC533LL/A, for $27.99 ($69 if new) for limited time. Shipping adds $5.79.

This dock Charges and Syncs your iPad while providing a tactile feel of typing on a physical keyboard. Special keys for the Home screen, Spotlight search, display brightness, picture frame mode, the onscreen keyboard, and screen lock. It also features a rear 30-pin connector and audio jack.

These Apple genuine units have been OWC tested and come with warranty.