The MobileFun.co.uk website is offering an iPhone 4 case with a mini Bluetooth keyboard inside. The TypeTop Bluetooth Mini Keyboard combines a “koskin” book-style case with integrated stand (to support the phone in horizontal position) and full QWERTY keyboard. The keyboard has a USB-rechargeable battery that lasts up to 100 hours between charges. There are dedicated multimedia keys to control movie and music playback, and other function keys to make full use of the iPhone 4′s capabilities. The TypeTop Bluetooth Mini Keyboard and Case is £25.49 (17% VAT not included in this price), which is about $39. It’s shipping within the UK and EU now.