If indeed Zoomer in unable to import/export to Macintoshes, I think Tandy has made a serious strategic error. Mac users are typically a couple of years ahead of PC users (calm down, calm down... I develop IBM software), and the Newton is happening now. Mac users are hungry for PDAs, and they have only the Newton to choose from if they can't communicate with the Zoomer.
I like a number of features of the Zoomer, but if this shortcoming is real, it will preclude a number of customers from buying this Tandy product.