1- I haven't been paying attention to this subject much, but I thought I read that APP2 users will have some sort of limited krpano license... What advantages will a full krpano license have over our APP2 krpano one?
A full krpano license will enables some features in Apt as multiresolution panorama or xml export. The xml export enables to code all KRPano features that are not interfaced into APT.
2- Will I be able to make automated intro panos in Linux? I saw that the downloads section on the krpano website only had Windows and Mac.
Some have already responded.
3- Will I be able to make virtual tours in Linux?
APT will exist under linux.
4- What do I do if I want to sell a virtual tour or single pano to a client, do I give him a copy of my license file, or has this "problem" been resolved by embedding it into the swf?
It will be possible to add domain limitation into exported flash (with or without full krpano license).