What's the handwriting recognition

[Morris]

Dear All:

I see the T-mobile G1 support the handwriting recognition.
But I don't find any demo for handwriting recognition, I'm afraid
that I misunderstand the definition of handwriting recognition.
In my knowledge, the handwriting recognition is to let user use pen
to write words on the screen.
Am I right?
Another question is the android whether to support handwriting
recognition for their inputmethod ?

Thanks a lot.
Morris