I have. It's a great phone/PDA/all in one. I still will use my 60csx most of the time, but with the right software the Mogul works as well.
What software do I need to geocache with the Sprint Mogul? I have Telenav up and running. What software do I need to be able to download geocache coordinates from the website? Geocache Navigator doesn't list the Mogul as a choice when downloading.