IPO Question (or feature request)

Is there a way to make the points in the IOP curve single points, instead of conrtool points on a curve?
If not, I want it in teh next release, like, ‘i’ makes the current kind of keyframe, and Ctrl+i makes a one point keyframe.
I think this would be realy nice. Is it already possable? (besides scaleing the handles of the keyframe down to zero)

If you hit T in edit mode you can choose Constant or Linear, but that messes up the “flow”. You want the same thing on Bezier though?