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.