Does monodevelop 2.1+ support visual studio 2010 project files ... yet ... and if not does any one know when support is planned ?

The reason I ask is that I have a solution that I use in both VS2008 and Monodevelop. When I open it in 2010 Beta I get the upgrade this solution wizard and I don't want to break my solution in Monodevelop by upgrading prematurely.