I will chime in with others and say that Xournal is a pretty slick application. The handwriting ills that some experience can be solved by writing a touch bigger. Resting your hand on the device isn't the best means to write, you will find it easier, especially because of the bezel, to write with your wrists elevated.

The export to PDF feature by far was/is the best feature for me. Being able to write notes and immediately export them to PDF to be uploaded to email/Share Point was pretty much it in terms of keeping quite productive.

I only wish that there were similar on my N97 - shame that Xournal is one of those apps that can keep you on a tablet. Solid work there by the developer.