Great plugin, thanks Donncha.

Our current WP install is in http://www.site1.com/articles
Can this be made to work in multisite with http://www.site2.com, http://www.site3.com, etc?

If not, is this something that could be added to a future version? We would be open to sponsoring part of that work if this is not a huge endeavor.
Or is there some technical reason why having WP installed in a subdirectory will never work with multisite multidomain? Thanks.