After a long battle with technology, Dazed_75 wrote:
> I'd like to be able to draw on my screen, have that show on the projected 
> screen and have the option to save that annotated slide for myself.
>    - Is there a Linux (or Linux utility) that lets the user use a tablet
>    PC in that manner?
>    - Is there any real downside to such a system (e.g. inherently
>    underpowered, etc)?

The compiz "Annotate" and "Screenshot" plugins provide a way to do this *if* 
you're running compiz-fusion.  Default keybindings:  Alt-Super-button1 to 
draw things, Alt-Super-K to clear the screen.  CCSM->Extras->Annotate to 
change them.  There are probably similar ways to do this in Beryl.  I didn't 
ever see anything like this for non-3D WM/DEs, even though at least one 
person on comp.os.linux.* asked about it in the last 2 years.  Problem:  It's 
insanely difficult to input text in this manner.

> Note, that using a graphics tablet does not sound good for a couple of
> reasons, not the least of which being the difficulty of relating the touch
> point on the tablet to the content of the presentation.  Writing on one is
> even worse.

I hear you about graphics tablets, but mice may be even worse.  Oh well, HTH,

-- 
   (o_   (o_   (o_   (o_
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   V_/_  V_/_  V_/_  V_/_   ...one by one the penguins steal my sanity
There is no Darkness in Eternity/But only Light too dim for us to see
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