The EXIF data shows that the camera used had a 13MP sensor which matches the expectations for the Sony Odin. The camera also had a max aperture of 2.0, and the photo, which was snapped on Monday, was taken with settings of 400 ISO and 1/8 shutter speed which is what you would expect freom a Sony camera sensor. While it was removed from Picasa, the picture showed up on Polish site SmartFan.Pl.
The Sony C650X is supposed to be a 5 inch phablet with a 1080p display. Just the other day, EXIF data from another picture posted on Picasa allegedly came from another unannounced Sony model, the 6 inch Sony C6603 Yuga.
source: SmartFan.pl (translated) via Phandroid