@contextfree`: I said 70% of use cloud cases overlap with Oslo, though I know not the minutiae or reasons why the project was aborted, I know that Cloud Computing is 100% guaranteed to generate revenue, rather than allowing users to create domain specific languages - there is just no money in it.

Apart from Academic excitement, DSL's are never going to generate a lot of revenue, apart from the cool Names like "Dublin" and "Oslo", I just fail to see why people just don't use another language. Ruby, Python and the DLR allow you to program in one way, .NET and languages like F# allow you other ways, and you can use Erlang or Scala if you need to, so it was all "Much Ado About Nothing" AFAIK or am concerned.

What do you need a DSL for?