Yes and no. The core idea is a lot like plaxo - keep your contact information up to date. But everything else should be a lot simpler:

- The address book doesn't try to use automated updates from Facebook and Twitter. Instead it just shows what people add to their profile.

- The app won't try to reinvent the address book. It is build on top of your existing address list and wants to It will just be faster to get to actions (call, message, search) and pair it with "self-updating" contact information.