Total Electoral College Vote = 538. Once you are projected to reach 270 you're declared the President, and this usually is the case after the final tally. Electoral College votes are in brackets. States winners are declared after you win the majority of votes (first-past-the-post is the law in all States except Nebraska which is proportional representation with its 5 electoral districts).
Solid Obama States
East Coast – Maine (4); Vermont (3); Massachusetts (11); Rhode Island (4); Connecticut (7); New York (29); New Jersey (14); Delaware (3); Maryland (10); DC (3) = 88
West Coast – Washington (12), Oregon (7), California (55) = 74
Mid-West – Michigan (16); Illinois (20); Minnesota (10) = 46
South-West – New Mexico (5) = 5
Hawaii – 4
Obama’s dead certain Electoral College Votes total out of the gate (17 States + DC) = 217
Solid Romney States
South – So Carolina (9); Georgia (16); Alabama (9); Mississippi (6); Louisiana (8); Arkansas (6); Tennessee (11); Kentucky (8); Indiana (11); West Virginia (5); Missouri (10) = 99
Middle Country – Texas (38); Oklahoma (7); Kansas (6); Nebraska (5); No Dakota (3); So Dakota (3) = 62
Rocky Mountain States – Montana (3); Wyoming (3); Idaho (4); Utah (6); Arizona (11) = 27
Alaska = 3
Romney’s dead certain Electoral College Votes total out of the gate (23 States) = 191
Now, the Contested States
In the East – New Hampshire (4); Pennsylvania (20); Virginia (13); No Carolina (15); Florida (29); Ohio (18); Wisconsin (10); Iowa (6) = 86
In the West – Colorado (9); Nevada (6) = 15
Swing States Total = 130
Swing States strongly leaning Obama - Pennsylvania, Ohio; Wisconsin, Iowa; Nevada = 60
Swing States strongly leaning Romney – None = 0
After Certain plus Strongly leaning: Obama 277; Romney 191
Swing States leaning somewhat Obama – Virginia, Colorado = 22
Swing States leaning somewhat Romney – Florida, No Carolina = 44
After Certain plus strongly leaning and leaning somewhat: Obama 299; Romney 235
Truly toss-up States – New Hampshire with 4
270 wins the Presidency, so at this stage Obama is +29 and Romney -35 with New Hampshire 4 as the remaining.
Note: Obama in 2008 won Florida and No Carolina