GrandCenral - Free portable phone number

[BLeonard]

I just heard about this - they provide a phone number that rings on all your phones with custom voicemail for everyone in your address book and the ability to record your calls, listen in on voicemail as it is delivered and filter spam calls. It's free.

Anyone here already using this?

http://www.grandcentral.com/

David Pogue has a video on it too:

http://tinyurl.com/2pt9kv