Anyone in the market for one of these have a look at Plantronics / Altec Lansing Backbeat 903 / 906. Had mine for a day now (amazon.uk £52, the 903 model) and I love it. I wanted something with as little cables as possible so didnt go for the jabra. The fit is perfect, is adjustable, they are soooo light, sounds great AND I can change my shirt or top without any interruptions Really recommended!

And as per thread title, all the buttons work fine.