I simply don't know OCR products to recognize manually scripted (handwritten) text. It looks like this problem is too difficult so I don't think we have such solution in a consumer product.
Here is the problem: manual scripting recognition of a handwritten input is quite successful and quickly becoming a commonplace. Please see http://en.wikipedia.org/wiki/Handwriting_recognition
But your case is very different.
The handwritten input recognition is based on recoding strokes as they are input by the user in "near real time". The direction of each stoke, getting the pen in contact with the surface and getting out (this is the very important part) and even timing is recorded. This is a lot of extra information! — critical for recognition.
In your case, you provide only a bitmap, all the extra information I mentioned above is lost forever. Very hard to recognize.
If somebody knows a ready-to-use (or even experimental, the one I don't know) software product which can recognize manual scripting (without teaching, which is important), please write down a comment to this post. I would be eager to learn about it.