I have notice a minor flaw in the behaviour of full screen applications in combination with activities. If I run a KDE application in full screen (ctrl+shift+f on my machine, or setting-> full screen mode), the panel is sometimes covering the application after switching between activities. I have found at least one way to consistently reproduce this (and perhaps the only one, not sure).

I am using Chakra stable packages.
$ uname -a
Linux <host> 3.6.6-1-CHAKRA #1 SMP PREEMPT Sun Nov 18 01:49:19 UTC 2012 x86_64 GNU/Linux



Reproducible: Always

Steps to Reproduce:
1. Have several activities available in plasma
2. Open an application in full screen mode
3. Switch to a different activity using keyboard shortcut (meta+tab on my machine, not sure what is default)
4. Interact with the panel, such as clicking on an icon for an open application in that activity.
5. Switch back to the activity with the full screen application
Actual Results:  
The panel is covering parts of the full screen application

Expected Results:  
The full screen application is using all screen space

Screenshot of how it should look: https://dl.dropbox.com/u/2293502/panel_correct_fullscreen.png
Screenshot of how it looks with bug active: https://dl.dropbox.com/u/2293502/panel_hover_fullscreen.png