That is beautifully designed. Here are some thoughts from first impressions of the web app:<p>The Facebook login page looks like an error page. Coming from the beautifully designed homepage, it looks like a completely different site. Why don't you just add the facebook connect button on the homepage? Saves me a click and keeps it beautiful.<p>Once connected, it lists events by default by Popular. The problem is that some of the most popular events in my Facebook feed are in the past. Since your focus is on getting people out, I'd not even list past events. Just sort future events by popularity and filter by location, friends and time.<p>I just noticed the buttons at the bottom of the screen. I don't know how they look on a phone but on my computer screen, they are almost invisible. You might want to change the colour a bit.<p>On a particular event's page, the text is almost unreadable, as you'd expect from grey text on a grey background. This seems to be the most common annoyance I spot on well-designed websites. Maybe designers can perceive tiny differences in shades of colours, but most normals like me can't.<p>I'm not sure what the search function is for. It doesn't return any results for my friends' names, even when I can see events listed by them.<p>[Edit: In the list of events, it doesn't show me which friend of mine has created the event. Putting a picture of my friends' faces next to each event will make me hugely more likely to click on them.]<p>[Edit: Your blog doesn't link back to your main site. If I launched an app every time I spotted this on a startup blog, I'd be the appiest man in the world.]<p>One social problem with this kind of listing of events is that while it's cool to see what events my wider circle of friends are attending, it's not very useful unless I've been invited. (edit: and if I've been invited, umm your app is not very useful.) If I can see Sally is going to the music festival next Sunday in the park near my house, that's cool but I won't join her unless she invites me or she's a really good friend who won't mind me turning up.<p>Which brings me to the main problem with the concept of this app. Your taglines are:<p><i>Don’t know where to go and whom with? Discover what your friends are up to!</i><p>The first one (where to go) is often a question I have. Whom with? Never. I mostly go out with the same set of friends and their friends. Discovering what my friends are up to is not hard with Twitter, Facebook, SMS, email or a phone call.<p>I haven't yet seen or used an app which recommends me things to do based on my interests and the events I've <i>been</i> to. Maybe Foursquare does this. I should try it out, but its focus (check-ins to get free beers) is something I'm not too interested in.<p>If you made something which actually tells me really fun stuff to do (my kind of fun), I'd use it, even if the design was fugly. Like Google.