It's cheap because of the 'limited' features, no camera, no microphone, WiFi only, low storage and no video out. It's basically just a battery and a screen.
I haven't seen anything about the processor, gpu or battery life yet, (apart from the dual core reference) but since it is apparently based on the Playbook, perhaps we can expect something similar to that.
[Jlo][CWM][CM10] Clockwork Mod & CyanogenMod 10 for Xperia J
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