O iPhoneless brethren, I feel your pain. None of us can afford the glorious device, despite our love for Apple. Fortunately, Paul Waite has created an amazing DIY music-playing PDA for the rest of us. All you need is a stack of index cards and an iPod shuffle. He calls it the Hipster PDA Shuffle, and the video introducing it is amazing. AMAZING.
(If you never saw the original, hysterical Hipster PDA article, get thee to 43 Folders!)