Additional snaps of the soon to be released Sony Playstation smartphone have emerged with plenty more details regarding the device's user interface.

The handset, which bears the codename Zeus and has been picked by Engadget, runs on Android OS 2.2 although the final version will likely come with Android OS 2.3 (Gingerbread) or Android OS 3.0.

The prototype comes with 512MB RAM, a 8GB microSD card and is as thick as the PSP Go with Engadget saying that the phone has more in common with the Blackberry smartphones than its own SE siblings.

As mentioned before, the Sony (or Sony Ericsson) Playstation phone is likely to feature a 1Ghz Qualcomm Snapdragon processor with a 5-megapixel camera and a proper physical slideout keypad with a large touch surface.

More importantly though, Engadget pictures did not show the phone running games or even applications, something that could mean (a) that more pictures are on the way (b) the phone is still in beta/alpha.

Then, there's still the question marks over the proprietary Sony online gaming marketplace that will run in tandem with the SE Playstation phone; nothing on this one has emerged yet.