Not Kayaking, but pretty cool.
Suppose you are in a lecture at a kayak symposium and they are using a whiteboard to list some things. You would like copies but there are none left. What to do? Grab your camera (or cellphone camera) and snap a picture of it (take more than one if the picture is large.) Next, email it or upload it with a google widget to ScanR and they will email you back a copy of the board. There are 3 features, Whiteboard, Documents, Business cards.
Later..
Tony