Hi, >Is it realistic to count on you guys to deliver the emulation components
Just to make sure that you got it right: As I understand, the only goal of the emulation components is that you will be able to compile your app in order to ease the migration process. Those emulation components aren't a replacement for mx or spark components and will probably never be. Of course... I could be wrong ;-) >Cairngorm.swc I am pretty sure that Cairngorm itself depends on Flex/Flash. Maybe it's a good idea to go through the Cairngorm source code in order to get an idea of it. As Harbs already mentioned PureMVC is another MVC framework which was written in pure AS3 without any dependencies. Because of this, it compiles just out of the box. If it turns out that Cairngorm also has no dependencies, give it a try and compile it. Otherwise, you can try to replace those dependencies. Regarding the other libs: Maybe you want to extract all required classes/components from each particular lib. Then you can think about their particular replacements. Apart from that, maybe it is also worth to think about a renewal of the entire UI or parts of it instead of trying to find perfectly matching counterparts for the current UI which could feel a bit outdated. Hmmm... not sure if this post is really helpful ;-) Olaf -- Sent from: http://apache-royale-development.20373.n8.nabble.com/