In the past the Gnome desktop depended heavily on the Xsane "framework" but after seeing some of its "limitations" they decided to start build something from scratch which they later called Gnome Scan.
Now as far as I understand, Gnome Scan is a not a software application but only a framework. Thus just like with Xsane, any developer can use these frameworks/libraries and create a GUI of their own easily since the hard work of figuring out how to "deal" with the scanner it self, etc is taken care by the library.
In that sense, if you're looking for a graphical front-end that uses the never and better Gnome scan library then you should try the one called Flegita which is also a part of the official Gnome Scan project.
*. By following the Gnome UI design rules... it has an over simplified GUI which is pretty much newbie friendly :D.
|I don't have a scanner so some features and configuration settings are missing in the screenshot, sorry about that dudes :/...|
*. Lets you scan and save the files into different formats such as PDF or images (PNG).
*. Rotate, change dpi, change size , etc.
*. Change the image quality (1-9).
*. Load documents directly from HDD or any other sources.
*. Has a separate GIMP plug-in as well.
*. Automatic color enhancement ...
are just the main features to mention. You can install Flegita 0.6.2 (current version) in Ubuntu 11.04 Natty Narwhal, 10.10 and 10.04 using the below command in your Terminal window.
sudo apt-get install flegita
You can install the gimp-plug-in using the below command if you need.
sudo apt-get install flegita-gimp
That's it. In the Unity desktop search by using its name or in Gnome classic desktop, you can launch it via the "Graphics" sub menu as well.