Along the same lines - I'm booking rooms for a group (10 rooms per night for 2 nights), and am getting all the points credited to one GP account (my account) through a mater bill agreement.
How will this work with the G1 promo? Can I request the G1 for each of the 10 rooms, and end up with the extra 10K points (10 x 1,000 G1 bonus points)?