I got my Omnisky modem this week. Very cool.
They said I needed Windows to install it. I just installed the 1.3MB .prc file I found and it worked. Now my Palm Vx has wireless TCP/IP from virtuall anywhere in the country (except for, of course, my house, where cell access sucks).
I used Top Gun ssh to get to my home box where I then went out to EFNet. IRC from anywhere. OK, maybe this isn't such a good thing. But it is quite cool.