Another potentially great invention! Mac Mice, the people who did GarageKeys are about to launch GuitarPlug and MicPlug - a thing the size of a guitar plug, with a mini USB socket on the back. Plug the USB cable into your computer, and it's a mono audio interface. Lots of potential complications with drivers and such, but it's a great idea, and $49 seems reasonable. The mic version won't (yet) work with condenser mics that need phantom power, but it could still be a very neat way to get a SM57 connected to a laptop. Product Page. (via Harmony Central)