This caught my eye over the past few days. Gradwell, a UK based service provider has secured an MVNO agreement with 3, and married the mobile piece up with a very nifty hosted platform and in essence is now in the FMC (fixed mobile convergence) business for the business market.
While they're steering clear of the word VOIP, they are marrying the idea of the PBX with the mobile world, something that I expect to see happening more and more in 2011.
As a Gradwell customer, I can confirm they’ve been doing this for a good few months now, I’d say 6 at least.