Engadget posted a story that Microsoft developer Truong Do built Mouse Without Borders, a software that lets you control computers on the same wireless network with one set of inputs as if it was one machine with a multiple display.

Until now, running multiple computers with one keyboard and mouse has tended to require KVMs or wormholes, but Microsoft developer Truong Do has a better idea. Working at Microsoft's Garage -- Redmond's after-hours pet project program -- he built Mouse Without Borders

  Microsoft's Mouse Without Borders: the KVM that killed the KVM