After spending a bit of time hacking around with various JavaScript frameworks and running into the limits of what JavaScript makes possible in the browser, we realized that a highly effective “Organize Items” tool in Gallery 3 was going to require something a little different. Some of the things we found that we liked were implemented in Adobe Flash, and while Flash has its pros and cons, we decided to at least build a proof of concept using Adobe Flash Builder.
It’s pretty pricy, but with a few e-mails back and forth with Adobe, they hooked us up with a few completely free copies of Adobe Flash Builder 4 shortly after it was released. Thanks Adobe for supporting Open Source!