I phone VR
I saw the new iTunes already and with it comes the iPhone Application store. One of the apps is a spherical VR viewer for the iPhone.
It wants your images in 2048x1024 resolution, or it will downsize them which will take longer to view them.
You put a 2048x1024 equirectangular .jpg on your website and point this new software to the url of the image and you can view your panos on your iPhone. You can also wrap a .xml wrapper around a collection of your panos to create a portfolio for easier viewing/navigation of all your panos.
I think this is pretty cool, and no extra work to view them on your phone, since you need a equirectangular .jpg before you would make a .mov or flash file anyways, so just resize it to 2048x1024 and you can show off your nice portfolio of panos on your iPhone.
Below is a link to the software, you will need iTunes V7.7 and iPhone V2.0 software before you can use the software on your iPhone.