Now, far be it from us to suggest that Sprint are looking to trick would-be iPhone 4G seekers into watching their latest Overdrive promo, but calling your video "Make your iPhone 4G" and then criticising AT&T's 3G network isn't going to go down well in Dallas. The Overdrive is of course Sprint's 3G/4G MiFi-style portable WiFi hotspot, capable - if you're in one of the 25 areas with WiMAX coverage - of up to 6Mbps downlink speeds.
Video promo after the cut
Of course, Sprint use their highest-possible speed for the video, and contrast it with the lowest "industry average" of 600Kbps you might see out of AT&T. We're not blinkered cheerleaders for AT&T's 3G network, by any stretch, but the video small print also says that the other "average" extreme for 3G is 1.7Mbps; regular users will probably get something in-between the two.
Still, that wouldn't make for such an impressive demonstration, and we can't really be too surprised at Sprint wanting to show the Overdrive off to its best advantage. If you're in an area with 4G coverage then it's probably going to be faster than regular old 3G, but we don't think link-baiting iPhone 4G curiosity-seekers is necessarily the best way to pitch it.