ProOnGo let me know about their current free public beta. They allow you to take pictures of your receipts and upload them to their service for later access. I guess you can already do this with your BlackBerry camera and offload them yourself but this is automated with easier ways to export the images.
NOTE: Sadly right now the app only supports the Storm due to its sharp camera but 8900 support is already in closed beta. Just expect it to support 3.2 Megapixel camera enabled BlackBerrys.
Right now there are no details on the pricing once it is out of beta other than it will be a low monthly subscription fee. Check out the details at this link or register at this link.
Let us know what you find!
ProOnGo Storm Beta: Easily Take Pictures & Upload Your Receipts