Seems like 2007 is going to be the year of Mobile AJAX. I'm currently aware of 3 companies that will release a mobile application framework that are somehow similar to Browser based AJAX Frameworks like the Dojo Toolkit.
Their vision is to reduce time-to-market for mobile Application development from several months or even longer to a few days. As far as I can say they plan to release their products this year, maybe beginning with Bling in Ferbuar.
It's not really clear what kind of business model they're gonna have. I think Mobidget and Mojax are trying for a "everthing's free" model. It will be really interesting to see how they perform and if they can break through the Walled Gardens of the carriers.
I think it will be essential if they can attract devolopers to write for their platforms, because they need lots of free content to appeal users. If they cannot solve the content problem they're gonna easy end up with the same problem as Nokia backed Widsets: They are unable to create a critical mass of I would say at least 200k ore 300k users.
I doubt that they can all go the carrier-firendly way, by helping them developing apps because in this field Brew and Flash Lite are very potent opponents.
In conclusion I dare to make a prediction: 2007 is to early for Mobile AJAX and we will not see mass adoption this year. I think 2008 will be the first mentionable year of Mobile 2.0.