If you already have CFBuilder, you're pretty much ready to go with AIR development. There's nothing extra that you need. Now, the default AIR SDK that ships with CFBuilder is AIR 1.5, but Andy Matthews pointed out that you can point CFBuilder at an AIR 2.0 SDK. Anyway, to create an AIR project in CFBuilder, just File->New->Project-> Type "AIR" and it will filter to "HTML Projects: Adobe AIR Project."

To update the SDK:
Download the AIR 2.0 SDK and unzip it. Move it to somewhere safe on your computer that you won't randomly delete it for no reason. Then, open CFBuilder, go to Windows -> Preference. Type in "AIR" for the filter text, then select "AIR SDKs" - Click on "Add" - Browse to the directory I just mentioned to keep safe and then type "AIR 2.0 SDK" as the name and hit ok. When you return to the original panel, you'll see "AIR 2.0 SDK" in the list and if you want to make that your default SDK, you should check the box next to it and hit apply.

So, why am I mentioning this? Because if you already have CFBuilder, then you already have Adobe AIR and it's potentially another thing you should be learning if you're not already learning it. After all, you knew that you can create HTML / Javascript AIR apps, right? Right?

Additional (useful) AIR links:

• http://www.meetup.com/coldfusionmeetup/calendar/14365311/
• http://www.meetup.com/coldfusionmeetup/calendar/13726129/
• http://www.andymatthews.net/category/AIR/
• http://www.12robots.com/index.cfm/AIR
• http://www.coldfusionjedi.com/index.cfm/AIR

With the release of ColdFusion Builder, you may be thinking that you're excluded from using it with Railo. You're not. The only thing you can not use is any of the RDS tools inside ColdFusion Builder. Railo does not and will not ever have an RDS implementation as it's Adobe proprietary stuff. So, why would you want to use CFBuilder? The code completion, cfml scripting support and even CFBuilder extensions work just fine.

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If you've been living under a rock, CFBuilder Update 1 has been released. BIG BOLD NOTE FOR PEOPLE USING CFBUILDER AS A PLUG-IN: #3 in the technote is important:

When you see the successful update prompt, do the following:

• (For standalone installation) Restart ColdFusion Builder
• (For plug-in Installation) Start ColdFusion Builder using the following command:
  eclipse –clean

Otherwise, your eclipse will basically remove CFBuilder as a plugin and you'll have to re-install it. I know this from personal experience. Learn from it. :)