I tried DomainPolish. Here are the results
iainmcqueen.posterous.com
iainmcqueen.posterous.com
Can you discuss a little how you source the focus groups? Are they free volunteers? Folks at a mall? It might be helpful to understand a bit about how web-savvy they might be.
I'm afraid that our actual users also don't give very good feedback either, but for opposite reasons, they're invested in the site and usually all we hear are technical support questions.
Having some objective third parties look over the site has been a problem of ours that I think this solves.
http://behind-the-enemy-lines.blogspot.com/2010/03/new-demog...
I've actually created human intelligence tasks (HITs) for websites on mturk myself, which can be quite a cost savings if you're willing to do the gruntwork yourself. You can create templates for reusability if you've got a set of questions you'd like answered about your site.
If anybody is interested, I'll create templates for you and sell them for a tiny fee... Hell, I'll make it a dynamic page and let you pick what you want on it and generate the output. Fully customized, reusable at any time, and you can name your own price on mturk.
Since you haven't launched yet the beta makes even less sense.
Re the UI of the landing page, looks awesome, a video of kids using the thing would be engaging and definitely a way to be notified with a simpler open ID sign in c.f. typing your email address would be better, that said, I understand you don't want to be working for too long on your coming soon page and focus on what you are building ;)
I really appreciate the feedback. Thanks for checking it out.
I can't tell if you use https, and the Stripe processing page is just an email landing page......Get that up with Paypal or the like and you will have at least one more customer.
Good luck with the launch.
Anyway, I went with a URL and will receive results in ~ 1 hour.
(At least for the basic offering -- I didn't pay attention to the others yesterday.)
Still seems good, but a little less of an "impulse".