Develop VM images, server types (i.e. high CPU core #), specifically for CPU cryptocurrency mining.
The mining software could be compiled and set up and updated for the most popular CPU cryptocurrencies (e.g., HeavyCoin HVC, Primecoin XPM, Riecoin RIC, etc.). The VM images could be developed for ease-of-use for non Linux savvy users who are interested in delving into crypto mining. There are many profitable services who sell Bitcoin or Litecoin cloud mining services, so Windows Azure could develop a line of CPU mining services to make it easy, since the infrastructure is already in place.
Thanks! If this picks up some votes, we will look deeper at this very special case. :)