I've got a Danger Hiptop, and it's got a wireless internet connection that I really like. I can use email/web from anywhere that I have cellular coverage, and it's a flat rate for unlimited usage.
I'm interested in replacing it with a Zaurus, though, mostly because I want to have a portable Java/Perl dev platform. But I don't want to give up my wireless. Does anything similar exist for the Zaurus? I've seen references to a "Pocket Spider" modem, but there's nothing on Sharp's page about it currently...