[adamio]

A circular layout might be easy to use with gesture, something like a rotary phone with radius jumps

[callalex]

http://www.theonion.com/video/apple-introduces-revolutionary...

[bdarnell]

This loopy gesture-based keyboard won some of the typing speed contests back in the PalmOS days: https://mrl.nyu.edu/projects/quikwriting/

[chinpokomon]

I just rediscovered my overlay last week.