thanks for the feedback!

good point about the bandwidth and timeouts.

also, browsers could definitely use the link information. Thought the idea is for the twitter clients (and other micro-blogging tools) to not obfuscate a URL with shorteners in the 1st place.

granted some sites will always need tinyurl.com, etc but there should be a way for sites to specify their own short URL versions of their long URLs

also as i understand it, adding a title attribute would break the purpose of using a URL shortener - i could see the link with title would take up more space than the original URL in HTML code.

also thanks for the opens search and fav-icon suggestions. i will update the RFC.