For those running dump1090 on PIs, there is a random collection of people pushing their data to SDRsharp. This data is visable (sometimes, when the plane count is not to high for the host) at http://adsb.rtlsdr.org
You can also reverse the streaming of data down to a device of your own, which I do and host a modified dump1090 that is in net only mode with larger buffers and modified webgui. My cached copy can be watched at http://adsb.mindlesstux.com/
To push to SDRsharp, use the below script and launch via 'screen -dmS pushSDRsharp ./pushSDRsharp.sh'
echo "starting the NC | SOCAT"
nc localhost 30002 | socat -u -T10 - TCP4:sdrsharp.com:47806
It uses about 1-4kb/sec from my findings going out.
After work i'll post shots of my little Pi setup too