There has been alot of discussion here about the 600 and whether it will survive the 650. I have always believed that P1 would move the 600 and 610 (w/o camera) down market when the 650 is launched. Others have both supported this idea or disregarded it. There is however some more information to support this idea.

Brighthand Updated Article

Updated: It has been pointed out that Walter Mossberg said, "Currently, all major carriers sell the Treo 600, which will remain on sale after the 650 is introduced," in his column in last week's Wall Street Journal.
I believe we will see the "family" that P1 has spoken of begin to further emerge early next year. That might include GFUNK'S "Rowdy".