Rooms can now be booked at the discounted rates
Tokyo Bay has rooms from 10,500yen a night
IC Strings and ANA IC both have rooms from around 17,000yen upwards
Yokohama IC has rooms from 8,500yen
I've been told that Ambassadors may not get an upgrade, so try to confirm before finalising your booking.
More info in the IC Hotel thread
http://www.flyertalk.com/forum/inter...t-offer-2.html