evaluating GTK+ for embedded system design

[peter greve bst-international com]

Hello,

I am actually planning the GUI for an embedded system driven by a PowerPC.
So GTK++ is one of the options I can go with. I like the GIMP tool, so GTK
should be a good choise.
But I have no feeling concerning resources, CPU load and library size
needed to run a GTK app in the "embedded world".
Maybe someone can give me some rough ideas or experiences.

Is GTK a tool for desktop computers only or does is also fit into the
embedded world?
What is the size of all libraries needed to run GTK ?
Do I really need the whole GIMP to run GTK as I red somewhere? (that sounds
very large)
Do I need a lot of CPU power to run a GTK GUI ?
Is there a spezialied version for the "embedded world"? What is about "GTK+
on DirectFB" ?
Does GTK needs the X-Window system? Can I go with Tiny-X?
We have to handle a lot of large images on the GUI (1280x1024, 24bit). Is
there a bottleneck in GTK or X11 to handle these data so I should avoid
these tools?

Is there a "visualizing" tool to help to design the GUI and the underlying
dialogs?

Is there a way to adapt a special graphics processor (coming with an
appropriate API) to an GTK application ?
Do I need to write something like a driver for that graphics processor to
connect to the GTK app? (I red something about GDK)
How can I support special features of that graphics processor like alpha
blending and text anti aliasing? Are these features already supported by
GTK ?

I hope the list of questions is not too long. But any information is
helpful for me to find the right GUI toolkit for my project.
Thank's in advance

Peter