Even though you probably still can't figure out what good the ability to connect your Bluetooth keyboard to your iPhone will do, the BTstack project is steaming ahead with this demo of a connected Magic Mouse twirling its pointer all over Apple's handset. The driver code is still unreleased, but we get to see some nice lag-free interaction between the two devices, suggesting it shouldn't be too far away from public consumption. As if to answer your earlier quandary, the video also features a Celluon CL800BT virtual keyboard, which projects onto and responds to your touch of any flat surface. A gimmick most likely, but a fun journey into the dream of nomadic computing nonetheless. Check out all the action after the break.