My colleague and friend David Keutgens built a Flex 2 Effects Explorer application - following its "big brother" Flex 2 Style Explorer. Please note that I don't have to do anything with it (not yet ;) but just provide the information and the download (to give the tool a good headstart). We actually have no idea if someone developed such as thing before or if someone could use it at all, but here you go!

In this version not all the details and effects are included, as well as the handling of the app itself will probably change slightly in future versions, but it should be fine for a 0.1 ;)

UPDATE: Before someone gets a wrong impression - My comment above that this was David's work was not meant to be disqualifying or something similar. I just wanted to credit him as the developer/author, as it was his work and not mine! ;)