iPod sound systems at the bottom of our Lucky Charms boxes next year, but JBL's trying to milk things while it still can. The company has just unleashed a new pair of iPod / iPhone-compatible sound systems, the On Stage IV and On Stage Micro III. Strangely enough, they look fairly identical, but the latter just so happens to be the more portable of the two (shocker!). The new duo sports a unique twisted base, with the On Stage IV housing four Odyssey transducers and having the ability to operate on a six-pack of AA batteries; the smaller Micro III uses just two Odyssey transducers, but it can pump out the jams for 24 hours on just four AAA batteries. Each one ships with an IR remote, touch volume controls and a built-in stereo mini-jack input for connecting those other PMPs you've got sitting around. The On Stage IV is expected to ship soon for $179.95, while the little guy goes for $119.95.