Google is making a huge investment in developing the Ajax approach.
At Adaptive Path, we've been doing our own work with Ajax over the last several months, and we're realizing we've only scratched the surface of the rich interaction and responsiveness that Ajax applications can provide.
Ajax isn't a technology. It's really several technologies, each flourishing in its own right, coming together in powerful new ways.
Ajax is an important development for Web applications, and its importance is only going to grow.