The other problem with idea people is that they haven't risked anything. I've been partnered with a few idea people in the past and if the project isn't finished quickly, they usually move on or want to do something else (and all the hard work you put into it is for nothing).

If a non-tech person can't offer me connections in my app's market or cash for funding, they won't ever be a partner.

I also now have problems with acquaintances giving me simple ideas that I thought of before (or are in the process of implementing) and claiming that they gave me the idea.