Olympus's E-3 DSLR came out in late '07 and was roughly comparable to the Nikon D300 and Canon 40D. It had two card slots: A CF card slot like a normal camera and a slot for Olympus's almost-proprietary xD card. It couldn't record to both simultaneously, and you couldn't even set it to switch over automatically when whichever one you were using filled up. Oly was just clinging to xD like grim death and wanted to sell cards, I guess.
Anyway, a couple years later the E-5 came out. An updated E-3 with HD video, 2MP more resolution, and some other tweaks, it was the last gasp of Olympus's Four Thirds DSLR system, and the closest to a true pro body they'd yet made. They even bowed to the inevitable and replaced the xD slot with an SD slot like a normal camera.
Guess what? You still can't write to both slots simultaneously.
WTF, Olympus?
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