For a device that has only sold a few hundred thousand units, I have seen many Treo 600’s today. I saw 3 different people besides myself on the subway with them today. They are popular but not ubiquitous yet. It is funny to see so many people with them.
One lady saw mine and was asking me if I liked it. it was funny to be approached about tech like that on the NYC subway.
Maybe one day they will be as common as the iPod is today? Well, maybe not.