In trying to make a popup appear when rolling over some text (or text-button with no border), then take on certain colors and textual information, particularly bullet points. I'm used to doing this in AS3 with either movie clips or sprites, but those do not seem to exist in Flex. Can it be done?
Sounds like you are looking to make a custom popup. It's quite easy and there are ample resource available on the subject.
Very cool! That's all I needed to know.