Aside: I looked into AWS a couple weeks ago, to play with a simple webapp idea, but the myriad choices, acronyms and signups confused me, and there was [seemed to be] no free options for getting started, and initial traction. It seems focussed on sophisticated enterprise users (nothing wrong with that). So, I went with google's App Engine, which was much simpler, and has been great. These micro-instances seem the same.
Did I give up too soon?