An Arduino Uno MySensors Gateway shield with ATSHA204A. The led indicators and inclussion button as well as the NRF24L01+ are located at the front so they can all be seen from the front side. The PCB is designed for people with mediate soldering skills and is designed such that it can easily be mounted on an Arduino Uno shield. The pcb can be ordered with all SMD parts mounted so that you only have to solder the TH components such as the headers, the leds, the jumpers and the radio.
The goal of the design was to create a shield which helps beginners to create a Gateway in less than 10 minutes. As I'm still in the learning process of designing PCBs improvements can be made please post them in the comments. I'm aware that the antenna should be as close to the Atmel chip as possible, but due to the nature if shields that is not possible. To keep the gateway thin the antenna is mounted between the shield and the Arduino Uno board. It is advisable to use a radio with an external Antenna to improve upon range.
There's a jumper header for enabling interrups on d2. If you use a gold old jumper or solder a wire bridge you can use interrupts on the Gateway. If you don't use the inclusion button - Domoticz e.g. doesn't support it - you don't connect it.