Re: I've used one of those
Argh - really really really want, this would be proper hacking around at home - you could create a private mobile phone network (yes it wouldn't be that practical due to range limitations etc but it would still be awesome)!
I never got to finish off my SDR project during my Masters due to the high hardware costs at the time. Gah...
On a different tack, if you had a large premises (farm, estate, island) could you create a private mobile phone network for everyone within it, and then have an "exchange" onto a regular fixed landline at your base station if you needed to call out?
Just need to figure out a way of coming up with a spare couple of K...
EDIT: Oops, in my excitement I replied to the previous comment rather than at the end, sorry...