If you ever have to review two very similar tech products--any kind of gadgets, even supercomputers--I highly recommend dragooning a pair of 11-year-olds. That's what I did on a recent Saturday when a couple of inexpensive, pocket-size HD camcorders arrived at the Quittner household.
"Want to make a movie?" I asked my daughter Clementine, giving her the sleek Flip MinoHD ($230). I tossed the slightly larger Kodak Zi6 ($180) to her best pal, Katie. "Let me know how it goes, kids." They tootled off excitedly to make a caper film, and I turned my attention to online poker. Sometimes this job...