Since not all receipts are standardized, I can foresee bugs with automatic input from taking a pic.
However, this suggestions has been brought up many times, and it's something we are looking into for a future release.
Some other common uses for this feature would be to add insurance info/card, warranty sheets for services performed, and service receipts for tracking or for presenting to new owner in the event you sell the vehicle; just to name a few.
We look forward to bringing this feature to the table and watching it grow as our Driver's find many ways to utilize it!
At this time, however, I do not have an ETA/timeline as to when we'll be implementing it. But, keep an eye here on the forums- we plan to post about new features here for everyone to discuss!
Apps such as Lemon and Expensify do this quite well. This would be absolutely killer feature and make it a daily use for me. I often don't use the app to its fullest because of the time to input. I look forward to any news!