I think the site looks simple, but practical.
Just by looking at the main page it looks like a site where you would go to keep in touch with people and be live. This is the next best substitute for being there in person.
I think your target customer base is college students, families that don`t live close together. Also, this could be good for people who are online dating to meet and see each other even if they don`t live far away from each other. This could be the safe way to take it one step further before meeting in person.
I think your tag line is good. I think it may need to be shorter. I don`t know anything about tag lines... just telling you my thoughts.
Hope this helps.