I would appreciate a feature in My iGUIDE to replace all panos instead of only allowing to do that on a one-by-one basis. I would love to be able to:
100%!
The way it currently works is very tedious and inefficient.
Afterthought: even better if I just only re-upload the images I want to replace, to avoid needless bandwidth and processing.
There are numerous ways that I can think of to improve pano replacements, like just overwriting the existing ones, like you pointed out, by dragging and dropping edited panos or even better and more powerful by using a protocol like FTP that would quickly allow batch replacements.
It also would be nice if the existing blur functionality was turned into a more feature rich pano editor for a quick, basic edits. The open source world is full of functionality like that that I expect would be straightforward to implement.
Sounds even nicer! However, that would be way more work in development and testing time, whilst download/upload zip only requires a minimal user interface and some unzip/move files logic on the server. Seems like something that could quickly become available 
But even that could turn into a support hassle. Inevitably, someone would upload updates to the wrong panos.