Hello, this function was recently added to CyanogenMod's Gingerbread keyboard, and I think it is very simple, elegant, and useful, especially for those who do not want to use gestures (also, holding shift and pressing backspace repeatedly is much easier and faster than, for example, swiping right to left repeatedly).
This is the change I'm talking about Delete a word by pressing shift-backspace.
I hope you consider this!