Building a bike mount for my Ipod/Iphone so I can ride around with style and sound!

Things to consider:
- Where it is most stable and not likely to fall off/ fall apart.
- Weather proofing (Ducktape :D) !!!
- Access while riding .
-Mobile ability (Can I interchange it, move it, etc).
The Mount  - Possible locations ...
The Mock-up Blueprint
The Proto-Type + Materials