I'm ready for Portal 2 to be released
http://www.youtube.com/watch?v=A88YiZdXugA Swift stated that future Portal developments will depend on the community's reactions, saying, "We're still playing it by ear at this point, figuring out if we want to do multiplayer next, or Portal 2, or release map packs." While some rumors regarding a sequel arose due to casting calls for voice actors, no confirmed sequel was announced prior to 2010. Portal 2 was officially announced on March 10, 2010, for a release late in that year; the announcement was preceded by an alternate reality game based on unexpected patches made to Portal that contained cryptic messages in relation to Portal 2's announcement. Portal 2's release date has been pushed back from the during Q4 2010, but has now been given a release date of February 9, 2011.
Be sure to check out http://www.thinkwithportals.com/