KNX demo board including an ORB

Helly Everybody,

I just want to write a little about my KNX demo board which is featuring an ALIX (reference hardware).
The KNX stuff consists of a power supply, a 4way sensor, a 2way switch, a dimmer and an USB gateway.
The USB gateway is connected to the ALIX box and I have an eibd running which is performing the bus access and provides KNX/IP protocols.

The board looks like this:

The ORB is als featuring a WLAN access point and provides a DHCP server for all wireless devices that connect to it.
It works perfect with iKNX running on the iPhone controlling my 2 lights and the dimmer. I also programmed a "central off" function for all lights.