Psamathe wrote:I use one of these http://store.aquapac.net/product/waterproof-phone-case-mini/. Available from a number of suppliers (online and in shops).
Waterproof, wear round my neck under my shirt (i.e. not flopping around), pretty cheap. I can hear all the sounds (e-mails, ringing, etc.) whilst riding. Works in the case (I have a screen protector AND the case and it works fine through both - though not with my gloves (I've not got those "special" e-finger ones). The neck strap avoids the need for fixing or pockets, keeps it out of the way, completely secure (wont bounce out of a handlebar clip thing).
Doesn't swing around whilst riding (I don't even notice it).
Check what size is appropriate for your phone. They do do bike ones that clip to the handle bars but I've just got the normal neck strap one which works brilliantly - been using it for a couple of years now and still going strong.
+1 I've even taken pictures in the rain with it still in the Aquapac