A recent Best Buy listing may have dropped a hint at the next big thing coming from the Logitech iPad accessory line. The listing is for a Bluetooth keyboard case that looks similar to the Logictech Ultrathin Keyboard Cover for the iPad 2 and new iPad, but this case comes with a new  twist: it's solar-powered.

Although the listing may have been a mistake, the Best Buy has the case priced at $129.99. The keyboard features 121 keys, including keys for multimedia and internet, and the whole case weighs 15.9 ounces.

The new case doesn't power the iPad itself, but utilizes solar power to charge its Bluetooth keyboard, and the sleek design doesn't seem to add too much bulk to the iPad.

Logitech's been developing a line of iPad 2 accessories focused around portability and sleek design. For users who don't need the protection of a case, Logitech also offers a low-profile tablet keyboard designed for the iPad. Priced at $69.99, the tablet keyboard presents a more frugal option for users looking to type comfortably on their iPads.