I get this too, I hit the on button at inopportune times. My "solutions" are to either get a case, or when (if!) you feel the vibrate, take the battery out. My "solutions" aren't very good.

 

Good point! Silent Boot is a must IMHO!

 

Mine makes no noise on boot up

 

Personally, I don't turn it off, I just switch to silent mode. aside from not disturbing anyone, I can still use it to look something up or whatever if I need to.

 

The desire is awesomely customisable as some media duped people are always saying but fails on the basics, like the on off button as you say. If it is so loud on start up, why is it sooo quiet when playing music through it's crap little speaker?

 

what do you mean by loud on start up ?,please describe.
Mine just vibrates and a pink icon comes up but not moving ,then HTC,followed by TMob screen

 

all phone speakers are crap for playing music. Anyone that considers the iPhone speaker to be good at doing this, is absolutely clueless about speakers.

mine too.

 

Do you not get the HTC Desire green writing on a white background followed by a loud noise?

Not that it matters to me as I've got the Silent Boot app installed...

 

I'm guessing branded Desires have a different booting screen than unbranded ones. My girlfriend has a Desire on Orange and she doesn't get the "quietly brilliant" that my unbranded one does.