Open Ajax Initiative Launched
IBM Press Release - Tech Titans Contribute Browser-Boosting Ajax Technologies to Open Source Community
Having some sort of standards cooperation amongst the industry leaders for Ajax is expected to accelerate adoption because it will simply be easier to implement Ajax behaviors using standard libraries, plus it will work across browsers.
IBM's own proposal for Eclipse tools hopes to provide a foundation for the types of things you need to develop Ajax style apps, like a debugger.
Sr. Product Manager, IBM Workplace Application Development Tools