The rate limiting docs suggest checking the "Retry-After" header when twitter search issues an HTTP 420 (see: http://dev.twitter.com/pages/rate-limiting)
How can this response header be accessed via Javascript? -- Twitter developer documentation and resources: http://dev.twitter.com/doc API updates via Twitter: http://twitter.com/twitterapi Issues/Enhancements Tracker: http://code.google.com/p/twitter-api/issues/list Change your membership to this group: http://groups.google.com/group/twitter-development-talk
