I didn't hear the speech last night. I was at the Emergent Village event while he was speaking. I have taken a look at the papers, watched a recap on CNN, I have a good sense of what happened.
President Obama made it clear that health care reform is something he considers absolutely essential. He will work with whomever is willing to come to the table, but won't give into obstructionism (so as to appear bipartisan). He spelled out most of the key components, but admitted that there are details to be figured out.
I didn't watch the speech, so I can't gauge the reaction for myself. It sounds typical though. Republicans sat on their hands. Democrats applauded. The most notable response came from a conservative Republican, who yelled "Liar." I'll leave that inappropriate remark -- in its timing, etc. to stand on its own--oh and his name is Joe Wilson of South Carolina.
The Key point is this -- Now, not later is the time for action. If we don't act now, the issue will be lost for another generation. The Democrats have the votes in the House, and just need to round up a couple of Republicans and maintain their Caucus in the Senate. That's what the people voted for. So, let's seize the day!