Network World reports that Google has reserved 1 million phone number, presumably for the upcoming Google Voice service. The free service, announced in March, lets users unify their phone numbers, allowing them to have a single number through Google Voice that rings a call through to all their phones. Sources could not say when the 1 million numbers may be assigned. Level 3 has been supplying Google with phone numbers since the introduction of Google Voice, so the 1 million numbers are an indication Google is close to adding a significant amount of users. If you've been one of the lucky beta testers, what do you think about it?