I sent in some feedback and the CTO of the company actually wrote me back with their gameplan... here was the email:

Quote:
Check back later this fall for multi-leg (or multi-city) search for our air
product. As for flexible dates, we don't have that one scheduled yet since
it is a little tricky to make that work across the hundreds of sites that
we search, given that those that implement it do so in very different ways.
We know that would be a cool feature for a site like ours, so it is on the
list for some future enhancement.

Nice. They actually DO read every comment they receive!