Pursuant to KQ's suggestions, I've started a page on the English wikipedia:
http://www.wikipedia.org/wiki/Wikipedia:Embassy
This is indended to serve a few purposes:
* Summarize current cross-language issues (software conversion, interface localization, interlanguage linking, ...?)
* Link to the equivalent embassy page on the other language wikis (please make them!)
* Link to the Intlwiki-L list, reminding that it's available
* List 'Wikipedia Ambassadors': polyglots who can keep an eye on discussions across the various wikis and lists they frequent and act as go-betweens and representatives when big decisions are being made.
On this last, I'm assuming that in general there is at least one person on each language wiki who's already participating in at least one other-language wiki and can keep an eye on the local embassy without too much trouble. The embassy can thus serve as a communications post for people who need to deal with that specific wiki; drop a message there and somebody hopefully can decode and reply to it, or else find the specific ambassador you need and contact them directly.
I look forward to expanding this system, and hope it turns out useful!
-- brion vibber (brion @ pobox.com)