I got mine. I honestly dont think it is a defect, I think that the led at the bottom is just way too strong. I mean those buttons light up pretty good. To be honest mine has it too, but it feels like different than the annoying light leakage, lol. I cant explain it, my friend has a thunderbolt and that thing had a fat gap between the bottom of the screen and the bottom phone panel, it was like 2 thick dots sticking out, that was just nast. It was like 2 light bulbs on the bottm of the screen leaking through the opening between the body shell and the screen bottom. This doesn't bother me though, this phone is built pretty good, the light is just too strong on the bottom that it shows threw the sides.
I had the nexus the light was bearly visible on that because the capacitive buttons were lit up so light that i couldn't even see them in the sunlight. I am sure if those were lit up like this phone it would show up around sides. I think if HTC toned down on the LED a little it would probably fix it, but they tend to use very bright led.