I have sent an email to several contacts in SIA to find out how many miles the the 'R' Suite would cost either outright or as an upgrade. I am sure we would be looking at a figure fairly significant, most likley proportional to the fare increase. Of corse this is when award seats are released and or available.

I have written an article here, and will post details:
http://biztravelguru.com/blogs/business-travel-news/archive/2007/09/13/singapore-airlines-release-a380-cabin-configuration-details-and-seat-map-diagram.aspx

Regards
Ben Hoffman
Business Travel Guru