1. Is it possible to use the caching for logged in users, so that return visitors who make comments and create content can experience the same speed as guests? I hope so, because it would be a shame if a new user visited the website, and then became a member, but then have a slow experience on the website.
Unfortunatily that is not possible....Since you should then keep track which cached page (and parts) belongs to specific user (groups).
2. When I was reading about "Actions" that clear the cache, I understood this to mean that if a user changes content (eg: makes a new comment/blog post/edits article) then the cache is cleared. Does this clear the cache for the content for the entire website, or just the specific page.
In the comming release you define actions which will clear the referrer page only from which the action is trickered. For example if a visitor makes a comment to an article this article / comment page can be cleared only leaving the other pages within the cache.
3. The major component I use is EventList. I think some other users here use this also, does EventList and this Accelerator component work well together? Also, this might be too specific - but if an admin creates a new event in the back-end, will this clear the entire cache? Or just the pages where the new event would be visible?
Also on the backend you can clear the cache if certain actions are triggered. Only then the whole cache is cleared....