We'll start working on it again after I get my new iMac, which should be released in Sept/Oct (my current setup is too unproductive for any new major developments with
).
In the meantime, I recommend using ServiceStack with MVC if you want Razor now. The SocialBootstrapApi template is a good example of a ServiceStack +
ASP.NET MVC + Twitter Bootstrap, Backbone, etc...
Although if you want to see Razor in ServiceStack before then - we take pull requests :)