Looks promising.
This is a great idea. There are lots of good close-up photos of species details. Unfortunately, I have not yet been successful in getting an ID. I picked a species I could see was already in the database but uploading the photo would not work. Repeated tries failed. It would be better if it could operate without the on-line connection. Otherwise it is only useful in my yard where I already know the trees. Most of the nearby National Park is without cell coverage. Until this app can ID leaf photos from the in-app database without needing to go on-line it will not be useful. A field guide needs to work "in the field", which means, mostly off-line.
fundypan about
Leafsnap, v1.05