Curry, 40, is the brains behind iPodder, a tiny application that he believes has the power to challenge commercial radio. iPodder is the bastard offspring of the blog and the Apple MP3 player. It combines the hyperactive talkiness of blogs and the hipness of iPods into something utterly new: the podcast. iPodder uses the blog syndication tool RSS to automatically download homebrew radio shows, podcasts, directly into a portable MP3 player.