The double points promo certainly opens new avenues!
It's good that there has been some discussion of this scheme. I posted a summary on the European railway board as I couldn't see any other mention on FT.
http://www.flyertalk.com/forum/europ...k-rewards.html
One thing to bear in mind is the pending status applies to points until the extreme of the ticket validity (even if travel complete). It looks like this is governed by the longest validity in the booking as I have a booking pending which included one open (short) open single together with two "booked train only" tickets.