KNX RF

Anyone or any good info or stories about integrating KNX with the BLGW? I'm really interested in KNXrf solutions so I could look at using KNX keypads on the wall (there are some pretty sexy ones). I'm not sure what the core elements of the KNX system I require though. Is there a KNXrf main repeater for example that can Ethernet directly through to the BLGW, or is there loads more needed in the KNX system before you get to doing the RF part?

It's s shame Lutron RadioRa2 isn't the same in Europe as it is in the US as there are decent keypads available for that on the US frequency (the Europe keypad options are all Pico crappy ones by the looks of it).