When I use Adwords Keyword Tool, I have two options: I can type one keyword phrase OR full list of my keywords.
If I type full list, AKT returs me only keywords based on this list, but if I type keywords from my initial list separately, I can gather much more keywords.

I've made screenshot for you, which will help to understand better what I mean.

http://clip2net.com/clip/m27668/1282474978-clip-4kb.png
http://clip2net.com/clip/m27668/1282475080-clip-2kb.png

So I suppose to add additional mode, where user can choose how he wants to gather data from AKT:
based on full list of keywods
based on each keyword from initial keyword list

Thanks a lot for your suggestion. We will analyze it and see what can be done to improve data harvesting from Google AdWords Keyword tool.