Somewhere or other (I can't remember where, unfortunately), I heard about ScanR.com. It provides an interesting service whereby you take a picture of a whiteboard or document (with a phonecam if you like), then email it (or MMS it) to one of ScanR's email addresses (there are separate addresses for whiteboard and document photos). They then perform some image manipulation voodoo on it and return you a PDF via email. You can see some examples on their site, but they can correct for weird perspective, bad white balance and a host of other photographic blunders. In addition, if you send them a photo of a typewritten document, they do some OCR on it to extract some text.