Use the money to help with any rate-limiting factors. If you don't have any, then ask yourself why you're raising it in the first place.
That is a great design for a 1st verison. Would be interested to know if you did this by yourself and had outside help?
I did this by myself. I'm working on the second design iteration and a few more features (like gallery and map view) before I get major HN feedback. I want to make it look more like a city guide and less amateurish.
I'd be glad to do a preview and answer any UI questions you have (just send me an email martin at UpOut dotty com).