Fjax – Flash Ajax
From my understanding, Fjax is an Ajax engine that uses Flash to do the XML parsing job. The site claims that Flash will do better parsing job than a normal Ajax would.
Fjax is an open, lightweight, cross-browser methodology for Ajax-style web 2.0 development
Fjax is a technique focused on drastically streamlining the XML handling layer of web 2.0 applications. Picture Ajax's XML parsing and handling with less than 65 lines of code! It's not a replacement for toolsets that provide presentation-layer visual gizmos. Think of it as a new engine to put under the hood of all the great widgets that are already out there.
Although the site looks cool, I hate it when I can't link directly to the sample to any other pages in the site.
I don't know whether it will become something big one day, but I'm sure programmer would like to learn about alternatives.
Fjax - an open, lightweight methodology for Ajax-style development [fjax.net]