PhoneBoy has a pretty concise summary of client TelEvolution's upgrade of PhoneGnome to 2.0.
There's a lot to PhoneGnome and candidly, what David and the team have done in the past year really is Phone 3.0. You have to really take a look at what it not visible to the user to appreciate what PhoneGnome does.
Also, if you ever wanted to use iotum, it's the easy way to try it.
Uber analyst and most often quoted, Jon Arnold, has some views as well.