It has been confirmed that Nexus One is made by HTC.
Some pics of the beast:
http://www.engadget.com/2009/12/14/exclusive-first-google-phone-nexus-one-photos-android-2-1-on/

And then there's Sony Ericsson's Xperia X10 which is also a KILLER phone:
http://www.youtube.com/watch?v=m19Lu-JUW1Q
http://www.sonyericsson.com/cws/products/mobilephones/overview/xperiax10#view=specifications
http://www.youtube.com/watch?v=bHJExGJ4K60

Both are probably hitting the stores in January 2010.

Oh, the irony!
Thank God I don't use FB (and never ever will). :-)

This problem can be solved much more easily: get a pair of good noise cancelling / in-ear headphones (Sony, Sennheiser et al.) and there's no need for high levels of volume anymore. For example, I listen to music for hours every day and I've never had to crank up the volume more than 50% on my Creative Zen because I have good headphones. (If you stood behind me and screamed or fired a gun and I wouldn't hear a thing.) Perhaps some consumer education is in place?