We tested a 2-in-1 mousepad/notepad and it turns out that it is pretty cool.
Product Test: Scratch & Scroll Mousepad.
You can buy the Quirky Scratch and Scroll Mousepad at Amazon.com for $15. It is a a 2-in-1 product. The mouse pad can also be used as a note pad. Just use the pen that comes with the product to write down whatever you need to. It goes on and then slides right off when you want it to.
It's easy to use and could be a good idea for kids taking some notes during homework. It was given two thumbs up.