When I visit the root domain I shouldn't be greeted with a marketing splash page, you need interesting content in the user's face right away, entice their curiosity and drive the user to explore the site... even as a fellow developer, my first instinct is to abandon the page as soon as I'm greeted with the cliche startup marketing page. Consider the user experience when I visit reddit.com or news.ycombinator.com or any other link aggregation competitor. What you have now is a tech demo, not a platform. Sorry if that's a little harsh, but I mean well! Good luck!
And I'm not trying to pile on, I'm just saying there's value to people in that fact.
I'd be willing to wager a good chunk of people don't care who runs their platforms so long as they can talk to the majority of their friends / see large swathes for new content / etc. - see Facebook, for example.