IANAL, but he is using enough of the song to be recognized, and specifically using that song for it's emotional message. Although profit is not a test of fair use, you could argue he is using the songs emotional message to bolster his "brand" in order to profit by gaining the Presidency.
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This update reportedly does that.
Random calls to numbers that bill $10 per minute to your phone
I am not sure quality and volume are necessarily equivalent. Actually, I can attest that I have heard quite a few very loud, yet horrendous bands on any given Monday night at the Rat. (if you recognize the club, you're probably old too...)
Knowing is one thing, running a service that tracks where they are and gives directions to them might be a little different...
To be fair, I am not sure the original design anticipated the amount of bandwidth that HD Video and the like use. TANSTASFL, or free bandwidth for that matter.
Ok, point of sanity here, if you are going to target a platform for development, shouldn't you own at least one machine to test on?