On November, 11th, Moncaì has been announced.
The post describes the product as "a platform as a service(PAAS) cloud solution for .NET/Mono web applications" which would allow to "deploy your web applications with ease by using Git or Mercurial by simply issuing a push command" à la Heroku.
Beside this, very little is known about the supporting infrastructure.
What have you been able to gather about the choosen tools (messaging, storage, ...) to support the project ?
Some informations are in this podcast.
EDIT: major highlights from podcast: