XMLHttpRequest Level 2: Comments Welcome on First Public Working Draft
2008-02-25: The Web API Working Group has published the First Public Working Draft of XMLHttpRequest Level 2. XMLHttpRequest Level 2 enhances XMLHttpRequest with new features, such as cross-site requests, progress events, and the handling of byte streams for both sending and receiving. Learn more about the W3C Rich Web Client Activity. (Permalink)
Read more at: http://www.w3.org/News/2008#item29.