They would make a great USB conversion keyboard ... [Rampadc]’s keyboard adapter is built for the ThinkPad T60 keyboard, which is shared between the Lenovo T60, T61, Z60, Z61, R400, R500 ...

The Lenovo Go Wireless Vertical uses a USB-A dongle to connect to your device ... you can link every other Lenovo peripheral, like a keyboard or another mouse, to the Go Wireless Vertical ...

[Frank Adams] liked the keyboard on his Lenovo ThinkPad T61 so much that he decided to design an adapter so he could use it over USB with the Teensy microcontroller. He got the Trackpoint working ...