Handwriting input comes to Gmail and Google Docs
gmailblog.blogspot.com
gmailblog.blogspot.com
I've tried LiveScribe and various other tablet handwriting recognition and being able to take a picture of/scan a handwritten sheet and make it into a google doc would blow anything else out of the water.
Unfortunately, I have no idea how niche such a feature would be or if it would be worth their while.
"Online" handwriting recognition takes as input pen locations over time (strokes), and outputs the corresponding words. "Offline" handwriting recognition takes an image of handwriting. It is much harder, since it has much less information.