I like the layout and the cleanness.<p>However, not sure if I understand the concept 100%. It seems to be similar to a timeline for your life. I created an event and noticed that I can add other participants to it. I assume that the event will be visible to them. I guess that is pretty nifty.<p>For example, suppose I attended a bbq 4 years ago with 5 other people. I can create an event for that, and those people will also have it recorded that they attended the bbq.<p>I also like the privacy settings - very useful!