After the SOTU, post opinion is often instant, and currently seems intent on discussing the reduced energy in the room due to the Prom Season, likely to continue. I believe it made things easier to listen to and quieter.
CBS Tweets:
robhendin: CBS's Anthony Mason says viewers polled were "overwhelmingly positive" ; said Obama gained 27 points in approval on plans for economy
CBSWashUnplug: Polling by @CBSNews shows overwhelming positive response to #SOTU: 92% approve of proposals laid out, 62% believe parties can work together About 7 minutes ago
Graphs to follow as posted online. It seems Obama made real headway on the Economy with speech watcher. Hopefully ratings were high.
Update: Jed has Frontpage posted a complete wrap of the first two polls.
Also, a good sampling of the online opinions via Daily Dish