http://www.facebook.com/chrispirillo - Please post a video response demonstrating how your speeds measure up against mine. Your mileage may vary!
From where I sit in this home office, however, I'm not so sure I see a clear difference between Sprint's 4G network and AT&T's 3G network - at least, from these two devices today. That may change with network upgrades, of course.
http://twitter.com/ChrisPirillo
If anything, I most of my off-camera tests showed Sprint's 4G network had better download speeds, worse upload speeds, and higher latency. Much like there's a megapixel myth with digital cameras, there may be a "G" myth soon enough...
http://chris.pirillo.com/