Been using the phone for a few days now. The speaker for me works fine when using it as speakerphone in conversations. The only issues I get is a low signal when indoors, which makes the sound bad.
Playing music, I would use an in ear head phones in most cases.
However as to playing music with just the speaker, did find it to be very tin like. With a lower volume that my last phone.
To be honest for quality, I would use a headset everytime.
Compaired to the HTC Hero (my old ohone) the music did sound much better on the Hero, while also louder to be honest.
So I would agree the DHD speaker is not better than some other phones on the market.
HTC DHD on T-mobile UK contract.