If you’re like me and have grand plans of typing up whatever comes to mind on your iPhone, but those giant fingers make it really awkward, you’re thrilled with the idea of a Bluetooth keyboard that allows you to strike real keys. The BTKeyMini is now available on pre-order from AValive for $92. The device has a cover that doubles as a holder for your iPhone and operates on its own battery; it’s designed to be folded up and carried in your bag – you know, the duffel you keep all of your iPhone gear in…