Hmm, that's odd. No idea why or why not. A new update (2.3) just came out today. It won't update with your hacks installed, but currently hacks won't work on 2.3, so if you're happy with the device, I'd wait for a hack. That being said, looks like native PDF is in the new update, so that's awesome for international books (if the screen size isn't too small).
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