A founder is just twice as valuable than a employee, and this just at the beginning. If you measure value by the actual profit a founder or an employee generates at a project, enterprise or whatever, you'll surely find that in long term is the employee that generates most of your earnings. That's a plain truth, if you have employees is because your business is growing and you can't deal with it just by yourself, so you need someone to work by your side at this point. Every earning from then now should be almost equally split on you and your employees. And I say almost, because your employees do owe you something, a place to work with less risk.
And that last part is the why I think a founder is 2x more valuable than employees. I love to see enterprises where they left a percentage of their actions to split that amount of earnings over their employees.
If you watch the platform near the wheel, you'll see that the water is actually going down since forward it the platform is in a lower level. I'm not an expert but, I haven't ever seen a pump making water flow that way, so maybe the water is always going down and the illusion is made by the camera position over a near flat object. Maybe you could tell the track position by watching how the water flows through corners... a pretty weird way if you watch closer...
The issue is that it should be an extension for your app, not a rule. I think, that the best way is to always do you own auth system and maybe improve it using OpenId providers.
Well, it's easier for user to register a page in an usual manner, why? Well, because they have been doing this all the time. In a startup I'm working on, we forced user to use a Google Account to login, then I ran a usability test on my mom, her first questions were: what's a Google Account? Where is the registration form?
Don't force people to user any third party login, instead, make them have a choice to sync their openid or facebook accounts to have extra features like facebook notifications, GCalendar and GDocs sync, etc.
Registering to an app must be easy, fast and intuitive. The use of third party authentication service must be unobtrusive, and should not limit your application, just improve it.