Why not use rwhois and distribute the load like DNS is? Let registerants decide if they want to provide rwhois support for their own domain(s) or if they want to delegate the task to the InterNIC to handle it.
Gee... imagine being able to update data about your DNS domains immediately instead of having to wait for the InterNIC to process the request.
Just my $0.02.
-- Dan Watts Vitts Networks dwatts@vitts.com
Actually, you could kill two birds w/ one stone by keeping the data in your inverse delegations. There has been some thought on this which could double as a distributed IRR, esp. for those who have trouble getting to/through those centralized databases. A brief note on how this might be done may be found at: http://www.isi.edu/div7/people/bmanning.home/inet98.html if I might toot my own horn here. Note that this is similar to, but does not go quite as far as the presentation given at a recent NANOG mtg. --bill