The planned in-service date for the MRH90 is 2010, but it will probably slip a little to 2011 as these things have a habit of doing.
IIRC, Navy will be using 8 of the airframes but they aren't dedicated hulls. Both the Army and Navy will share from a rotatable pool. This means (gakk!) the Navy will have can't-see-me colours rather than the traditional low-viz grey.