I find it disappointing in its current form. I assume you aren't doing much more than a few ajaxified api calls to the 5 or so engines you're aggregating which is neither technically challenging nor technically interesting.

However, if you applied relative rankings for the individual items from each engine and aggregated them into a single results page instead of multiple "framed" result sections, you might have something I would actually want to use. This would also overcome many of the usability and UI problems I find issue with.

It certainly has potential to become something.