Snapter is software that lets you use a digital camera as a mobile scanner. The software automatically crops, stretches, flattens, and converts photos of documents, whiteboards, posters, business cards and receipts into more portable images. Whether you are in a library, conference room or classroom, just snap the photo and run it through Snapter to produce images that look as if they have been scanned through a flatbed scanner!

More info: Snapter