As if we needed any more proof that the plain old telephone networks were on their way to extinction, it seems MCI has joined forces with Microsoft to offer a new pay-as-you-go VoIP service similar to that of Skype. The new service will allow users of MSN Messenger to make calls to VoIP phones and regular telephones for a fee. The number of instant messaging services with VoIP capabilities has grown in recent months. Microsoft's new MCI-powered service will go by the rather clumsy moniker of MCI Web Calling for Windows Live Call and will offer reasonably priced long-distance rates starting at around 2 cents per minute. MCI will sell prepaid calling time for the new service in $5, $10, and $25 chunks. Now if only the telcos would start making naked DSL widely available so that we all had real telephony choices.