Are there any ipad applications or utilities that allow you to enter handwriting into a text field? I've seen various iPad applications that allow you to take notes in your own handwriting. I'm wondering if there are any options for allowing a user to input handwritten data into input fields on web page and convert the handwriting into text.

For example, Windows Tablet edition had this functionality built in. They had an "Input Panel" button, which resembles a small window with a pen over it. You would then write your text in the Input Panel window and the Tablet PC would automatically convert it to text after a short delay.

I'm hoping to find something similar for the iPad, if it exists.
There is no native way to input handwritten data into input fields on a web page.  However there are a few workarounds (not elegant but may help).

Using an application like WritePad for iPad, you could handwrite your text, have the application convert it to text and then cut and paste the text into the browser.