I do my share of traveling (as does Steve) and find that my iPhone plus a couple of well-selected apps are enough to get the job done most of the time.
It's strange that the iPhone wasn't included, since its connectivity isn't limited to Wi-Fi as the iPod touch is. It's even stranger that several apps also made the list, like Yelp (tap the masses for dining tips) [iTunes link] and the Zipcar App (find a quick-and-easy rental), but not the device that would get the most out of them. Perhaps it was the high cost of service for the iPhone?
Stranger still is their inclusion of the Droid. We assume it made the cut based upon its proven track record. I mean, it's been out for a whole 3 days now.