Recently was told that Apple no longer supports Quicktime...and I have been having color issues with it (on PC).
I make panos from time to time and have generally made them in Quicktime because that's what I started with some years ago. Should I go to Flash? Why, as in what will it do for me?
Your best option for displaying panoramas is a player that will detect Flash if someone is on a web browser, but also serve an HTML5 version to those viewing on an iPhone or iPad. I really like Pano2VR - it's easy to do the basics, and the online video tutorials are excellent. You might also check out krpano.
Here's a recent 360 panorama that includes an HTML5 version with iPhone/iPad gyroscope control: http://bit.ly/V83Xiu