I always enjoy meeting with Sarik Weber, a German IT entrepreneur based in Hamburg. Not only does he come up with practical solutions to every day problems, he has thought through the arguments more than most in his field. At LIFT-09 in Geneva, I got a chance to discuss his latest venture for mobile, Cellity, and have since been playing with it on my Nokia N95. It's fast and logical to use. cellity.com. I have no commercial connection with this company - simply interested in this trend.

Most Internet and mobile users have to deal with an ever-increasing number of contacts and contact sources, making it more and more difficult to keep up with all contact data changes. Cellity’s addressbook 2.0 synchronizes and updates automatically all contact details from different sources, such as mobile phone book, Outlook, Twitter, and Social Networks. This central interface is the only integrated solution that is available online, via WAP and as a mobile application.