Leafsnap: Leafsnap is the smartphone user's secret weapon to a more meaningful relationship with trees. It's incredibly simple and strangely addictive: find a tree, grab a leaf, snap a picture. The app scans its outline-parsing criteria like smooth or jagged edges, single- or many-lobed-and tells you what tree it thinks it came from. It's similar to the "whoa! this is the future" feeling you get when you deposit a check via smartphone. Hound: Hound is a voice recognition app that's essentially a really...
