[wallacoloo]

Also a big thing is undocumented shortcuts (or shortcuts for functions that I didn't even know the program was capable of). Gnome's push for standardizing Ctrl+? to display a shortcut window is a good start - hitting that in Nautilus shows me a bunch of stuff I had no idea about - but that's not likely to see much adoption outside of Gnome.

Additionally, plenty of 'legacy' applications (MATLAB's linux version, the Cadence Design Suite, etc) don't use standard shortcuts at all. I don't even know how to copy/paste in MATLAB off the top of my head - just that it sure as hell isn't Ctrl+C/Ctrl+V. Keyboard icons would be a boon for that.

In any case, if you don't look at your keyboard, you're hardly inconvenienced - you could even just disable the feature altogether. If these see widespread adoption/lower cost, it will aid some people while actually inconveniencing very few, so I see it as net positive.