GrandCentral are aiming to give you one number for all your phones, for life!
Whilst playing around with a Blogger site I had just started, I found Grand Central a phone company purchased by Google.
Anyway I tried to join but it appears the service is not yet available in the UK. but it look very neat and would certainly come in handy.
If anyone is currently using this in the US I would love to hear about it.
GrandCentral will offer visual voice mail and heaps of other features for managing calls.