Nokia taking on the Treo 600/Treo 650?

It's hard to tell exactly whether they're talking about that
9300 Communicator we mentioned the other day, but a report from research firm A.G. Edwards hints that Nokia is planning a handheld of some kind designed specifically to compete with the Treo 600 (and by extension, the Treo 650). Wouldn't surprise us in the least (if anything it seems long overdue), but the most immediate result of the report was a slide of nearly 10% in palmOne's share price.