Julie Zhou of Facebook discusses usability findings from Facebook Connect. Photo © John McCrea. All rights reserved. Monday last week marked the first ever OpenID UX Summit at Yahoo! in Sunnyvale with over 40 in attendance. Representatives came from MySpace, Facebook, Google, Yahoo!, Vidoop, Janrain, Six Apart, AOL, Chimp, Magnolia, Microsoft, Plaxo, Netmesh, Internet 2 and Liberty Alliance to deb