I bought this phone from ebay, and I wasn't able to activate it over the phone since the person said there was some kind of software upgade and I would need to take it to a sprint store. I took it to a Sprint store, and the guy said they don't so software upgrades and that I would have to get that from Hitachi. The guy then told me candidly that nobody really has too much luck with that phone, and the store has only been able to get about 2 of them to work correctly.
I bought this phone off of ebay about a week ago for 157 bucks and it works perfectly. called sprint up and they activated it over the phone and the g1000 was online immediately. I love the phone by the way. It does everything but it is big and heavy.