A great idea, but still needs work
I love the idea of this app, and when I can get it to work, its great - but its often very hard to get it to work (the Snap It feature, I mean).
As others have noted, it frequently insists that your picture is not a leaf on a white background even though it is - the faintest trace of shadow, dust, anything seems to throw it off, so you gave to try and get your leaf to lie absolutely flat. Plus, sometimes it cant connect to the server, and theres no option to retry - you have to take your photo all over again.
Also, the fact that its location-awareness is exclusively American is kind of annoying. Given that tree species dont just stop at the border, how hard could it be to allow Canadians to enter our actual location instead if having to pretend were in New York or something?
Overall, though, a useful and appealing app - I just hope that these issues will be addressed in future versions.
Lynx Canadensis about
Leafsnap, v1.05