In the more recent updates to Gnome 2 under SL 6 (both X86-64 and
IA-32), when one puts the pointing device pointer over an element of the
window switcher matrix display, the actual primary applications running
in the window/screen to which the element "points" are displayed. This
does not yet seem to be present in Mate as available for SL7. Is there
an addon that adds this functionality?
Yasha Karant