Maxim, you said to post about bugs which we find critical for 5.0 release.
I have two related to UI designer:
1. You cannot use custom components in palette if you are compiling with
Java 5.0. It's impossible. This is not an issue if you're running on a 5.0
VM, as provided by the latest EAP, but it's still a serious issue
This is http://jetbrains.net/jira/browse/IDEABKL-2336
2. You generally can't use generics in any class which is bound to a form,
because BCEL corrupts the class file.
This is http://jetbrains.net/jira/browse/IDEABKL-1953
I think these need to be fixed for Irida, because they prevent a great deal
of serious use of the UI designer.