Reposting from the welcome forum (I'm new in here)... I got my HTC Desire last Sunday. It's a fantastic phone with great features, but whenever I hold it to my hearing aid with the hearing aid switched to Telecoil, mostly I hear the phone buzzing and making noises, whether I'm on a call or not. It drowns out the speech. I didn't notice this problem in the store, but there I was getting louder noise from their overhead fluro lights! I've placed a call to HTC support to ask them if there's a fix for this. FWIW, the same hearing aids worked just fine on my "old" 3G phone (A MotoRazr).