What exactly do you mean with flexible permissions? By now, you only see resources, that you have rights for.
The last release of PHx is now nearly two years ago. Have you tried to talk to the original developer of PHx?
The problems of bigger sites with the caching is well known and as no one was able to solve it in the past, the code has to be checked and maybe replaced. I had some experiences with the caching of Zend Framework, it might be worth a look to use it as component.
Somebody already has released a multi-image TV using custom TVs. I can't find the link to the forum post about it at the moment, though.
For multi uploads the complete stack for the file management has to be replaced.There is an Uploadify multi file upload hack to the file manager, I use it on all my sites.
Better caching system: fix limit of 5000 resources, fix strange behaviours of uncached or cached snippets
This discussion is closed to further replies. Keep calm and carry on.