America is the only place you can loose in popularity, have less votes and still win the Presidency... don't ask me how... it just happens... look at Bush
he shouldn't ask you because you're too stupid to understand the American political process.
Anyways, here is what you need to know Aussie:
1. The numbers differ from where you get them because they are projections. Some are AP (associated press), others are from CNN, and some can be from FOX's analysts.
2. The AP projections tend to be more of less accurate. Now assuming these numbers are accurate all Obama needs to win are California, which is going to him, and Florida which has a slightly higher chance of going Democrat than it does Republican. Both would push his count over 270.
3. What the presidential hopefuls are vying for right now are electoral votes. Written in our constitution is a passage that says that states will assign electors and that these electors would vote for president. So the popular vote is meaningless. Electors do not have to vote with the populous. They're free to vote any way they want. They just generally tend to vote with the popular vote of their state.