The other day I managed to get hold of a MiniMax EVDO modem for a short time. Although I can find it anywhere on their website this EVDO modem is available through Telecom NZ. If you're interested in purchasing one you can contact your local Telecom store. I was keen to get a chance to try it in Windows Vista.
I connected to the modem to my LS800 using the USB cable provided. I then tucked the modem in behind the strap on my LS800's bump case.

Although the device driver was not available via Windows Update I was able to do and he windows XP driver to install and function correctly. The dialer application shown below was intuitive and easy-to-use.

I only time to do a quick speed test, which gave me a download speed of just under 300 kilobytes per second. I have arranged to get one for a longer period of time when I get my EVDO bump case for my LS800. At that time I will do further speed testing and report back on the impact on batterylife.