I'm actually surprised nobody replied to this already.
The last couple of days I've been reading a lot about DASH7. I want to create a sensor network in our home and I don't particularly like the options currently mainstream (Zigbee; bad with concrete, only 'lowish' power, wifi interference, $25+ per radio).
In the past I've dabbled with Arduino and I'm a bit reluctant to start with MSP430 microcontrollers and CC430 radios. I'm sure others can sympathize/feel the same.
Long story short; I'm looking for a (preferably simple) way to get going with DASH7. A shield would fit that bill.