[dbro]

I did, too. Different UI, though. See http://www.domainjig.com

[EGF]

This one is great too. Any others that are similar that folks know about? Leandomainsearch.com is pretty great too

[grinnick]

Really cool! What are you using for availability checking? You're getting so many and they're coming in so fast!?

[nwh]

You can usually just hit the DNS for the domain, and if it doesn't respond you can assume it's not taken. You might hit a couple of domains that are registered with no NS set, but they are few and far between. I've used a similar process before and been able to check hundreds of domains a second.

In your case you could probably do a DNS check, display "probably available", and in the background do the time consuming WHOIS scrape.

[borlak]

That's awesome.. it shows michael.org as available though, which it isn't :( got my hopes up!