Japanese blog Macotakara pointed us to the “NoteBook Case” for iPad, but by “notebook” the website really means a MacBook Pro clone. The case packs a built-in Lithium-polymer battery that allows you to charge the iPad while in use. It also features a USB port, mini USB port, and Bluetooth for the keyboard. The case is available through Japanese retailer Rakuten for 5,980 yen (or roughly $75), so it could land in Rakuten’s United States-based Buy.com in the near future. It is made specifically for iPad 2, but most cases should work with the third-gen iPad due to the tablets’ small difference in thickness. Go past the break for a full gallery.