Companies are starting to figure out that the contact information on your mobile phone may be the most important social network you have - perhaps even better than the email inbox that Yahoo is targeting. Danish startup ZYB started offering a service that simply backed up your mobile phone contacts to the web in mid-2006. A year later they turned all that data into a mobile social network. They’re one of the small startups with a real shot at mobile social network with critical mass. As of August 2007 they had 200,000 active users. It’s no surprise, then, that ZYB is being emulated. Israeli startup NewACT, with $6.5 million in funding over two rounds from Cedar Fund, are launching ...