I ran across this week old article from Brough Turner about the tipping point for Mobile VoIP being 2009 - 2010. I couldn’t agree more and Brough hit’s the nail on the head when he states,

Significant transitions involve years of incubation and then a tipping point. Mobile VoIP, or more broadly mobile IP communications, is approaching such a tipping point. The actual transition is more likely in 2009–2010, but business models are being established right now.

Right now the Mobile VoIP landscape looks a lot like what the VoIP industry did circa 2001 - 2002; two dozen “players”, new players entering each month, companies figuring out how to make money from “free” and of course bleeding edge technologists eating up each new service like a fresh new apple pie. Sure, there are still a fair amount of technology issues holding back the industry at large, but I suspect much of this will be ironed out in the next six to twelve months as consumer adoption moves from bleeding edge to ‘first adopter” and large cellular carriers start to take notice.

If you are interested in this space, I highly recommend you read the rest of Brough’s article.