It's interesting that even this article on YC has inspired people to submit their own personal Flash websites, so we'll crawl them and index them, so there's some interest. How much interest is still yet to be seen. We're not into the 10k uniques or anywhere close to it, so that's a catch-22.
I'm intimidated by Google and Yahoo going into this market full-steam and us being the only bug to squash. They might not even care about us and just roll over the top of us, but I think - at least listening to what others have suggested is that the key is to out-innovate Google and Yahoo and just do a better job. Ask.com has great search results, but hardly anyone even knows that they exist. Personally, I think that google likes that their search results are lame - they sell more ad clicks that way. Google's search results are just 'good enough' to keep people from abandoning their site and going somewhere else. Also all of the other web-apps give customers a warm-fuzzy about using a Google service. I know that we have all of that to compete with, but I'm still optimistic. :)