Well . . . they really don't seem unified. It's more like a couple hundred movements that are more or less going in similar directions.
I scanned the Declaration, and it's . . . its heart is mostly in the right place. It's too fuzzy to be taken too seriously as a manifesto, though. It's more a summary of grievances, and the General Assembly doesn't speak for everyone out there. The protest was actually started by some Canadian group that specifically wants to stop corporate donations to politicians, if I remember correctly.
As I often say, corporations exist for very specific reasons, to do very specific things that they're designed very specifically to be very good at. But that's it. Corporations are not designed to be ethical, or even legal, or to promote any kind of general welfare -- quite the opposite, they're intended to promote their own welfare over that of any other entity, commensal corporate relationships aside.
It's society's duty and best interest to regulate corporations. It's not sensible to expect them to regulate themselves, and it's just childish to expect them to be automatically regulated through some mysterious arrangement of environmental conditions ('market forces', etc). A corporation is like a fire. It has its uses, but if you're not in control of it, it's going to ruin you. Expecting it to simply behave itself, or to respond to a lecture . . . that is not an adult attitude.
As far as I can tell, the major effect the protests on Wall Street have had so far is to increase corporate donations to the NYPD, which is pretty ominous. I'm not saying it's an inherently bad protest, but the target has to be politicians and the public. If you're pissing off the public, you're working against yourself. Your protest has to always make the corporations look much worse than it makes you look. So far, they've mostly made the NYPD look bad.
I totally sympathize with them, but even with Michael Moore and yadda yadda, they're not getting it done yet. Still, the addition of the union protesters is like China getting directly involved in the Korean War. It could make a huge difference.