for now my iphone does everything i need it to do when im on the bike and id rather stick with it than a bike computer so my question is 3 parts.

1) what is the best iphone mount, ive broken two already just from road vibrations. durability in staying on the bike is more important to me than waterproofing.

2) are then any kind of plug in kits that will allow the iphone to work with a wheel sensor and give more cycle computer style functions?

3) im using EveryTrail as of now when i ride, suggestions on other iPhone cycle apps to look into?