SDR FM Transmitters

Hi,

recently, there’s lot’s of low power FM transmitters on eBay. Looks like
there was some change in the US allowing low power stations…
Anyways, I now stumbled over an SDR version
(http://www.ebay.com/itm/261391237801) and was wondering if anybody had
a look at one of those already or maybe even got one to work with GR.
One of those with a Jack- or icecast-based input interface would make an
awesome low power - low cost school, university or neighborhood FM
station.

-S