Although the cost of this app is very steep compared to the free version for a seemingly minor additional feature, it is worth it if you are a creator of these panos or maybe in real estate sales. This version allows you to view downloaded panos offline. For me that is a must have feature. But if you don't need to view panos offline certainly get the free version that is the only difference.

As a longtime user of the Pangea Pano Previewer when making panoramas, I leapt on this one when I got my iPod touch. Had some problems saving text plain enough for XML code, but after several exchanges of correspondence and one phone call, all works pretty well now. Still occasionally a bit buggy, but generally OK. It's a perfect app for my needs, and Brian seems to keep tweaking to make it better.

Requires posting to a website before it can be downloaded to iPhone. Does not support just pointing to individual files unless you also create an xml file that points to it. Crashed several times when I tried to archive files pointing to the xml file. I sent a request for help to their tech support and so far it has been over 4 days with no response. At $15 for one feature (access to files when internet connection is not available) it should be easier to use and stable.