The Extremetech guys gets very specific in the criticisms of ajaxWrite, like keyboard shortcuts don't always work (or get implemented), browser-specific technology (in this case, Firefox 1.5), and of course some security issues. It's a top-to-bottom review of the service, and the results aren't great. Then again, I see all of the ajaxLaunch stuff as being more proof-of-concept. Why it isn't ajaxLaunchBeta is beyond me. After all, Beta is the new black.