I just recently finished an rtl-sdr based automatic meter reading receiver for smart commodity meters, thought it might be useful to add to the list of known applications table on the wiki. I don't currently have a trac account so I cannot add it myself.

Name: rtlamr

Source: https://github.com/bemasher/rtlamr

Blog Post: http://bemasher.github.io/rtlamr/2014/02/08/innards.html

-BeMasher