Am I the only one who barely has enough time to interact with one PC after work (if I even feel like turning it on after a full day of programming), that the thought of interacting with multiple devices at once is overwhelming?
For example, if you had an iPad and iPhone you can have them both configured as the 1 and 2 positions, and switch the switch as the relevant device was docked.
With a lot of existing Bluetooth keyboards you would need to re-sync it each and every time you switched devices.
I use it for work, OSX on my left Windows on my right, single keyboard and mouse. It will even let you copy-paste text between computers.