Personally, I wouldn't want to see it as there are plenty of phone forums out there and phones — apart from the iPhone — really don't have that much of a connection with Apple or Macs; the main reason for this site.
There's no reason why you can't post about phones in the community forum, and what's more, why shouldn't we have a sub-forum to discuss other gadgets, or cars, for instance.
When other forums have been added, they've always had a connection to Apple in some way. Digital photography is a good example with the release of Aperture and iPhoto, for instance.
There's not much really that you can do with most phones and Macs except sync them and talk about their features, most of which are already overtaken by a new model within months anyway.
It's about retaining the main focus of the site on Apple stuff. My thoughts anyway.