Really a lot of my pain is the IDE (eclipe is a step back from something like VS.NET 2k5 with Resharper, come on ctrl-tab doesn't work!), but some of the things

Really a lot of my pain is the IDE (eclipe is a step back from something like VS.NET 2k5 with Resharper, come on ctrl-tab doesn't work!), but some of the things feel half baked (if you are doing "code behind" components, you have to name them different things since there's no concept of partial classes or even files with the same name, but different extensions (mostly because the .mxml is compiled to .as3 with the same file name I think)). You end up having to write a lot of custom controls simply because the ones built in are great for rapid POC type stuff, but aren't necessarily what you want for your "real" app. Then you're just trading one set of community developed stuff for another. I also looked at OpenLazslo and it's pretty neat, although it's lack of IDE, community support and the fact that it's stuff crashed my system a bunch (nothing like having to install tomcat on a vista box) turned me off (the ol site was down while I was testing it, and has been down numerous times when I've been demoing it, so that's a huge problem).