Great work - the aesthetics reminds me of airbnb :-) I would suggest that you do some kind of input validation for the 'request an invite' box - eg, checking for empty strings.
Hey Anthony, wow thanks for the nice words (and yeah I totally was inspired in places by airbnb - I really love their design work)... Good point about validating for emails - I need to check duplicate entries too, also think I need a good way to check if it is a valid email address that is been entered - that has been causing me a couple of problems in the last few hours.