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It should be possible, but it requires quite a bit of hacking the code, I'm afraid. What you're suggesting is build in an intermediate page with only part of the information. For this, you have to modify the module to see a summary page (or teaser page), and the singlelink.php file as the full text page.
What you can do more easy is add the x characters of the description to the category overview page, with all the links shown under each other. Then the hack would be smaller.
I'm not a coder, so I can't tell you what to change and where to change it, but I hope this will get you started.
Herko