Are there any plans to make a KVM switch (without the video part)?

I suspect many of us don't have the space to keep a separate keyboard and mouse for our DOS machines, so we use a KVM switch. As I read here, there are problems with KVMs. So it would be great if you could make a keyboard+mouse switch for 3-4 machines where one of them uses PS/2.

It would be even better if it could accept a PS/2 keyboard, such as the old IBM ones, and output either direct PS/2 pass-through for old machines or emulated USB keyboard for newer PCs (when PS/2 cable isn't connected on that port).