Japanese blog macotakara recently published new details on the iPad 2, quoting a mysterious Chinese source. Apparently, the device’s case will feature design changes specially in comparison with the current model. It’ll measure 239mm x 186mm, a bit smaller than the first iPad.

Also, the tablet’s back side will be flat instead of convex, like the current generation of slates. We’ve also heard that the bezel around the 9.7 inch display will be smaller and the iPad 2 will come with wide-range speakers for improved audio quality.

Shipment is expected for these devices in January or February, while the release could be scheduled in Q1 2011.