Google Wave’s scroll bars just feel wrong. The thumb isn’t proportional - it always remains the same size, but the scroll ‘bar’ grows or shrinks based on the amount it can scroll. It would feel more natural if the scroll ‘bar’ extended the entire height with a proportional thumb.

![jimray:
The OpenOffice 18 button mouse. This is why open source design sucks [via The Grubester]
If you need 18 buttons, your user interface fails.](http://24.media.tumblr.com/tumblr_kspmqzUvtr1qz4s19o1_500.jpg)









