I’ve been far to busy to write here lately, but wanted to share this with you: Arpit Mathur has a sweet Flex-built mp3 player that shows off a little of what Flex can do when building a mashup that combines media, storage, and identity (in this case Box.net, Flickr, YouTube and Amazon). He built this in very little time, so it has a few quirks and bugs, but hey, it’s a proof of concept. They’ve been featuring it at Adobe Labs over the weekend. Check out FlexAmp here (Flash 9 required).