Hi thats interesting, I thought the market would be quickly saturating and the big cos would be coming in.
I agree though a simple well thought out game could do well or what about a point and click idea such as that Mystery Huntsville one?

Mercury you say-
'Best way (for me) is to send early but good looking prototypes to publishers and work together on the product.'

How do you make sure they wont just steal elements your idea? I know film and book companies do not like receiving unsolicited ideas and synopsis as they could get sued by the creators if the publisher comes up with a similar idea.