A few comments.
1. It was a very good political performance.
It was truly masterful.
2. Obama was less than truthful throughout, continuing his administration's less than truthful lines. Something you pretend is true doesn't become true because you repeat it boldly.
Something the Republicans seem to have much bigger problems with than the Administration...
There are tons of examples like the stimulus bill did have earmarks, and it would have been very easy to be transparent about the health care reform process (nobody forced Obama to make backroom deals with PhRMA, etc) and broadcast debate and negotiations on CSPAN, and it's not true that Obama has kept his pledge about lobbyists. The list is long and none of it's new.
Technically he told the truth on earmarks in the stimulus, if you go by the definition of what earmarks are. Earmarks are funds allocated in amendments to bills and do not go through the normal budgeting process in Congress. There were none of those in the Recovery Act. People often, wrongly, conflate "earmarks" with "pork". They are not the same thing. Earmarks are a specifically defined legislative tool, while pork is an ill-defined political term to describe "local spending that people who don't live in that locale don't like and consider wasteful". There was TONS of "pork" in the Recovery Act. That's was part of the point. This "pork" was not allocated through the earmarks process however, it was allocated through the normal legislative procedures. And Obama explained that, if you cared to listen.
As for the transparency, certainly you have a point, he neglected to mention or take responsibility for the White House deals with health industry giants.
As for lobbyists, Obama repeatedly says, TRUTHFULLY, that his Administration has the toughest restrictions on lobbyists serving in the Executive Branch than any in history. Has he allowed former lobbyists into government through waivers? Sure he has, but that's way more restrictive than lobbyists have ever needed before. The idea was to make it more visible, not just to bar lobbyists. Feel free to provide this "long list", because I'm interested in parsing it.
3. If what Obama and his supporters really want to accomplish is getting Republicans to work with Democrats then Obama's performance and his supporter's high-fiving over his big win make this a failure. If you want a group like the Republicans today to work with you, and you're in power, you use reconcilation not smackdown. Cheering on Obama's big win as if Government is a sporting event between Team Democrats and Team Republicans, of an event where ObamaCo asked if he could attend a Republican Retreat after the Dem loss in MA, is not the way to get Republicans to work with him. It was a way to get his supporters and the media to cheer for him as if this were a campaign and he wanted to win against Republicans in an election.
What should he have done when confronted with these delusional talking points then? Cave? Say "you're right, crap, why haven't I been listening to you all along?" That would have been stupid. You're making it sound as though he was disrespectful towards the Republicans. He wasn't at all. He was partisan, but he was extraordinarily respectful. He structured it like a debate, and he's a good debater. There was nothing wrong with his performance at all.
Also, as has been pointed out to you, they invited him. They gave him the opening.
You're completely misreading the message this sends to the public, IMO. This was like Question Time in the UK. The President was able to demonstrate that he DOES listen to Republicans. That he IS willing to look at, and when appropriate, adopt their ideas. He demonstrated that he is VERY smart, and very wonky, even without notes or a teleprompter. You cannot deny that he demolished the Republicans on their talking points. In fact the Republicans themselves are admitting that. It is THEY who are in a corner now, not him. Maybe to very anti-Obama people this could be construed as a misstep by Obama, but I think the Republicans are going to have a lot of pressure on them to at the very least commit to future "Question Times". They'll look like whiny children if they refuse. This was a MASSIVE political win, and contrary to what you seem to be implying, getting the Republicans to participate is about POLITICS, not policy.
So if ObamaNation wanted to score points and humiliate the opposition and set up election year campaigns for Us Versus Them, then A+.
But if Obama wanted to build a bridge to make Washington work better and pass good legislation, then Epic Fail.
It was a fine reminder of who Obama is and what he does, and of why his first year has been such a failure, and why his next three years will be at least as bad. He says he wants one thing, to make himself look virtuous and elicit cheers, and his actions are about something else entirely.
Now you just look like a sore loser. "Waaaa Obama called out the Republicans on their shit! HE'S not always truthful EITHER!! He's just PROVING what a JERK he is!! This is gonna SUCK for him!!"
Yup, just like in the campaign...everything is great for John McCain...