Adobe AIR has paved way for Rich Desktop Applications that are working in unison with Web 2.0 applications. The advent of twitter clients made in Adobe AIR has given this platform the maximum exposure. The Adobe AIR applications have given rise to those applications which according to me may be termed as Desktop 2.0 applications(In conjunction with Web 2.0) . I have tried to compile a list of cheatsheets for Adobe AIR here.
AIR Cheatsheets from ActionScriptCheatsheet (PDF)
Understanding the Potential of Adobe Integrated Runtime (AIR)(PDF)
I am sure the above list is no-way exhaustive. If you find any other resource , please enlightnen me. I will add it to this list.