I think the way the Zaurus has progressed - its time for WiFi and/or BT and a VGA port - its time that the Zaurus functioned as a standalone little computer which can be hooked up to a regular monitor, keyboard etc and for presentations.
Ok, even if not that far, PalmOne with its Lifedrive (what a silly name) Mobile Manager is showing that the World (sorry, read USA) is ready for more functionality from a PDA. Sharp has already done what Palm is now doing (4 GB, Music/Video etc) .
So if Palm is showing the way to heftier more functional machines, why doesnt Sharp think of cracking the US market now - when general people have been spoon-fed the idea that a handheld is more than a Organizer.
I mean, if people are receptive to the LifeDrive concept, then I am sure with enough exposure Sharp can show the Zaurus alongside the lifedrive and show off the extra functionality that it already has together with WiFi and VGA out and maybe a better screen (4").
As for the speculations, is it a Japan only release and is it the same clamshell based models ? I wouldn't be surprised if Sharp brought out a newer design now. The clamshell has been iterated quite a few times already, though of course I can't imagine another design that is so functional and easy to use as the clamshell Zaurus.