We need a mobile web page that detects what type of device the user has and depending on the device, we want to forward the user to a certain url.
We need a web page that our QR code will point to that detects the type of device and forwards people to the appropriate place. We are promoting a free app that we have and when someone scans the QR code, we want the user to either 1) Go to the Android Market in the section where our app is so they can download the app, 2) Go to iTunes to our download app page, 3) go to the mobile version of our site if they aren't on iPhone or Android.
You don't need to worry about anything with the QR code, we have that taken care of. What we need is the web page that the QR code resolves to.
So to summarize it, we want people to be able to scan the QR code from any device and once they do, it goes to a mobile friendly web page that you created, and that page forwards people to the correct place depending on what type of device they have (Android, iPhone, or other).
Thanks for your time!