So far, 17 stations in 10 countries spotted this morning on 6m MSK144 RX. This is a very good start. Just before breakfast I was briefly on TX in this mode on 6m and was spotted locally by M1BXF/SDR and G4KPX. Most of the time I have been RX only.
UPDATE 1112z: 29 stations in 11 countries so far today on 6m MSK144 RX. This mode is getting popular!
UPDATE 1706z: Lots and lots spotted today on 6m MSK144 RX.