Comment bait? If you want to make this coming soon page useful, then insert a clear call-to-action that has purpose. In other words, now that you've got us all going to your lovely page, why not make good use of our time and request that we give you our details if we're interested in your startup...but that would involve you telling us more about your startup.

Have a look at these for some inspiration: http://www.sitepoint.com/blogs/2009/05/14/design-a-successfu...