GPRS, EDGE support

Hi Guys, I just wanted to ask a few questions about packet data availability/support, because I did not find the specifics on the site. 1. Is there a working GPRS/EDGE implementation in the moment? If not, what is the plan or the state of the development process? 2. Which hardware should I buy, if I want to play with GPRS/EDGE? I am thinking about USRP or BladeRF, but maybe there is a better alternative. I am willing to spend more in order to get a more future proof unit (for example: to have a unit which is capable of doing EDGE if and when it is going to be supported). 3. This is not related to packet data. I wonder if I buy a USRP unit , it is possible to configure and use one USRP device with more than one TRX? In general, I think a lot of people are interested in packet data and OpenBSC/OpenBTS, it would be nice to clarify these informations on the site. BR, Csaba