The module was cleaned a bit, and now you have the option to use either libcurl or Snoopy for http data retrieval. Snoopy integration doesn't work as it should, this is why the module hasn't been released yet.
After some discussion with some bloggers using Blogger on how to integrate tagcloud and listings using Simpy to a Blogger powered blog, Otis (the guy who made Simpy) agreed to add some functionality for this to Simpy.
There is a problem that I (and others) would like to see solved: not making listings go offsite.