Amp

I just did this theme for Medialoot.

Here is a live demo:
http://medialoot.com/preview/AmpPortfolio/index.html

tip: I used to test on the iphone by uploading the design on Dropbox, then saving a draft on Gmail and accessing that draft on the iPhone and launching the safari app. I discovered a MUCH better way though:

Use Anvil (free) to create a .dev domain that will work locally, then with xip.io you can access that domain from any device connected to the same network. Piece of cake!