An almost stealth release from Apple, the new "iPod nano Armband (5th Generation)" ($29) is a highly similar update to last year's fourth-generation iPod nano Armband, changing the tailoring of the band's face to accommodate the new screen and Click Wheel of the fifth-generation model, and adding a second bottom/rear hole to accommodate headphones when used with the Nike + iPod Sport Kit wireless receiver. For obvious reasons, no rear video camera…