I strongly would like to advocate the option for wireframe
move and resize of windows. The use of dumb Xterminals, 
perticularly over slow(er) links is hardly possible if
the full window content is being displayed while moving.
Dumb X terminals tend to have a relatively light CPU and
GFX chipset, hence are not very capable of heavy updates
to the displayed content. We use Xterminals in our office
LAN and found that switching windowmanager for Gnome 2
or switching to KDE3 made the terminals much more responsive.
These X terminals are connected via 10Mbit, using home
DSL links made it so bad that teleworkers had to switch
or find their home terminals totally unworkable.
This is not a broken application that causes the 
slow response, nor is this request for a useless frill,
but in my opinion a real world case where wireframe resize
and move would make the problem dissapear completely.