At the moment it looks like 10m is now quiet with just locals and the odd European. There seems to be a total lack of North Americans now on the band. I'll be monitoring for a few hours more and things may yet change. 10m has a habit of throwing surprises.
UPDATE 2045z: Yep, surprises! Just been spotted on 10m WSPR by three north eastern USA stations. As I half expected, just when the band seems "closed" it opens again to the USA. 10m is indeed a band of surprises!