In the previous leaks it looked as if the handset is still running Symbian. Nokia, however, announced that the N8 will be the last Nseries device with that platform, and it will move on to MeeGo for the next ones. From what we can grab from this latest batch of pictures, it is indeed running something else rather than Symbian, which may as well be MeeGo, judging from the battery and menu icons, and the clock font (all look just like MeeGo on the N900). Nokia World is coming next month, so we are sure we can endure a month of suspense.
Oh, and the pictures look stamped with Dospy.com in the lower left corner, so that probably is the real source - if anyone knows Chinese, head over there and dig something more if you can, your language teacher will be proud.