I noticed that American and United failed to win any slots as well. The winners appeared to be the little guys: ATA, Frontier, America West, TWA (unfortunately now a small fry) and Midwest Express.
This appears to be an attempt to by the DOT to help the smaller carriers compete with the big three--or at least to gain some market share and size to eventually take the big three on head to head. It remains to be seen, however, if dividing so few slots among so many airlines will allow them to create competitive service, or will be too little to take on the giants. I'm sure FL and TW, for instance, would prefer more than a single daily frequency.