It has been discovered that Google may have a plan in the works to allow you to port your current number into the Google Voice service. OK, by "plan," we mean they say "we may offer that at some point." Personally I’m fine with having a separate number for the service, although I can see how it could be useful to some.
Further evidence of this upcoming service has been found on a Google help page here. Google also is letting us suggest services we'd like to see on the Voice platform. You can leave your suggestions here. Or, ya know, in our comments. Cause Google's a big fan of WMExperts, dontchaknow.