Current amd64 build status

[Sean Lynch <sean@lindenlab.com>]

I notice that a lot of packages that didn't used to be built for  
amd64 are now built, which is really great to see. Is it currently  
looking like amd64 builds are going to keep up with i386 builds? Is  
there anything that's likely to stand in the way of amd64 keeping up  
in the future?

Thanks for all the great work.

-Sean