I just took this test at http://jakemandell.com to see how accurate my pitch is, and my score indicates "World-class musical abilities"! 91.7%
"While working at the music and neuroimaging lab at Beth Israel/Harvard Medical School in Boston, I developed a quick online way to screen for the tonedeafness. It actually turned out to be a pretty good test to check for overall pitch perception ability. The test is purposefully made very hard, so excellent musicians rarely score above 80% correct. Give it a try!
... The test you are about to take was used as a screening test to roughly characterize patient’s pitch discrimination and musical memory abilities. Even though musical memory is strongly tested here, we have found that people who are tonedeaf tend to have normal musical memories."