As one of its daily deals, All4Cellular offers this Apple iPhone 4 / 4S Bluetooth Keyboard Case in Black or White for $9.99 plus $2 for shipping. That's $3 under our May mention and $3 less than the lowest total price we could find for a comparable case sold elsewhere. It features a rechargeable Li-Ion battery, sliding design, LED battery and charge lights, and microUSB charging cable. Deal ends today.