They will all be available in February and support xD-Picture Card memory. Some more info:
The $150 FE-210 is at the bottom of this pile with a 7.1 megapixel CCD, 3x optical zoom, and power supplied by 2x AA batteries. The $200 FE-230 and $250 FE-240 share that CCD but introduce Olympus' TruePic Turbo image processing to the series as well as a rechargeable lithium-ion battery. The FE-230 packs an ISO 1250 while the FE-240 scales back to ISO 1000 but ups the optical zoom to 5x with a 3-cm macro mode.
The $300 FE-250 then, is lord of the serfs with an 8.1 megapixel sensor, 3x zoom, BrightCapture low-light technology, and likely pointless ISO 6400 (or ISO 10,000 at 3 megapixels) without any image stabilization.