We have come across a screencap of the ‘About phone’ section of the upcoming Sony Ericsson Xperia PLAY SO-01D, destined for NTT DoCoMo in Japan. It shows that the handset is already running a version of Android 2.3.4. The firmware (build number) on the handset is 4.01.C.0.50, which we’ve not come across on either the R800i or R800a PTCRB website so far.
This could be a Japan-only version of the firmware or perhaps the European/Asian/North American version has not been certified yet. Given that Sony Ericsson has already flagged the Android 2.3.4 release for the 2011 Xperia range will start from October, hopefully we are no more than a few weeks away before it is unleashed.