Sony Ericsson, now Sony, said that the Xperia Smartphones that were announced last year would end up being upgraded to Android 4.0 ICS sometime in March or April. The time is nearing as Sony has recently launched a beta ROM for the Android 4.0 ICS for the 2011 Xperia smartphones.
The Xperia smartphones that are included in this beta ROM are the Xperia Neo V, Xperia Arc S and the Xperia Ray and is actually for the developers, not for the actual Xperia customers. With this being said, you may want to think twice before installing the beta ROM to your Xperia handset.
Para quienes quieren tomar el riesgo, puedes visitar Sony sitio web de Desarrollador para instrucciones encima cómo para descargar.