Jon Arnold quotes some ChangeWave data on residential VOIP that has quite a few statistical factoids. 18% of Americans use a consumer VoIP service. This is up from 14% in June 2005, and from 7% in September 2004. 19% intend to use VoIP in the next 12 months. Vonage has 31% share, canle providers have 16%, and 8x8 has 6% market share of residential VOIP.