Electronic Notebooks

I'm interested in assessing electronic notebooks for my laboratory. They need to stand up to scrutiny for patent applications, and be portable to the point that my support scientists would prefer them over traditional notebooks. The problem with any "virtual" system is that the old "detail the experiment on a napkin and then tape it into your book" type of thinking won't work with an e-book. However, this device may come close to that line/style of thinking. I'll have to check it out, next fiscal year.