Amazon has definitely had some issues keeping the wraps on its readers and it looks like the Kindle DX fell victim to the trend. Of course these most recent leaks weren’t quite as bad as the Kindle 2 we scooped over four months ahead of its official launch, but never the less we basically knew all there was to know about Amazon’s super-sized e-book reader ahead of today’s announcement. Well actually, there were a few surprises tucked away in Amazon’s pocket — namely automatic screen rotation which is certainly a welcome addition. The rest, such as its specs, annotation capabilities, device size and its new education-centric features were already pretty well covered. Pre-ordering is now live and the DX ships this Summer — Price of admission: $489.