The original iCade cabinet arcade dock for the iPad has been refreshed with a more compact version called the iCade Core. Functionally identical to the original one, this one lets you play games on your lap. It uses Bluetooth to connect to your iPad and it can fit both the iPad and iPad 2. It should fit the new iPad as well. The drawback though is that it doesn’t look as cool as the arcade cabinet version.
Hold on to your wallets though, the iCade Core is not out yet but Ion announced that it will be first shipped to UK in mid-June for ￡49.99 ($81). Check out their site for more info.