Yes, this is the full-time focus of a number of people on the team right now. We really really really want a fast, pleasant iteration loop when compiling to JS.
Any plans to collaborate with sdbg [1] for the Eclipse/debugging/source mapping side of the developer experience?
(AFAIK sdbg is just one guy who regularly copy/pastes code out of the Dart IDE + does some polish for GWT projects. Would be great to have a more formula/official collaboration, since it seems like a lot of "debugging language X via source maps with browser Y" could be shared infrastructure.)
