I've already read cynical responses from the anti-Obama contigent (left & right wings) and I think they are missing the real point.
Osama bin Laden is someone who declared war on the rest of humanity and has engaged in the butchery of thousands of people across four continents (North America, Europe, Africa and Asia) for more than two decades. Any justification for his violence was long ago vitiated by the purposeful targeting of ordinary civilians. It matters not that Bush & Cheney and their neocon crew used him as an excuse to engage in their own butchery. In the attack on the World Trade Center, he was attacking the world, not just the US, and everything that modernity stands for, particularly what is best about it - secularism, equal rights, equality before a rational rule of law, and the undermining of fundamentalist power structures.
Will this event be used in opportunistic ways by every political operator under the sun? Duh, and irrelevant.
This person did not care to share the world with the rest of humanity, wishing to arrogate to himself the power of life and death over all others. It is right and just that the world decline to share the world with him.
UPDATE - Interesting news snippet I have only seen in my local fish-wrap:
"An American official says Osama bin Laden was killed in a mansion close to the Pakistani capital.
A Pakistani intelligence official confirmed that the al-Qaida leader had been killed in Pakistan. "
This news intimates that he has been living in Pakistan under the protection of someone influential for some time. Time to be following some money.