Well, event editors can edit or delete events in the event detail view as well, so the Event Month View Table seems not be essential to me (although the "Delete" link in the event detail view does not work - you have to enter the event edit mode to delete the event). But of course you're right - why trick around, when you can use a simple switch!

I still use this stylesheet trick to hide the time zone information only. An additional switch to suppress the time zone in all calendar views (monthly, weekly, detailed, list mode) would be a "nice to have" feature to me.

I agree.

I also think events should work off the portal time zone, not its own. Hopefully one day this might get fixed, which will help things a lot:

http://support.dotnetnuke.com/issue/ViewIssue.aspx?m=1&id=4671