The Apex coverage results for unit tests in the Force.com IDE and the developer console are very different. I just ran 2 tests in both and got:
IDE: 75 lines not tests, 68% covered
Developer Console: 52% covered
IDE: 57 lines not tests, 76% covered
Developer Console: 57% covered
I'm wondering if this is because the developer console is counting blank lines differently (they show up highlighted in red). The IDE seems to have the correct number and I'm also wondering how to get the correct number from the developer console, which is much faster than the IDE for running my tests.