Sony Nozomi is Xperia S

• 1.5GHz dual core SoC
• 4.3" 1280x720 720p reality display
• Android Gingerbread
• 12mp camera with Exmor-R sensor
• To be available in March

This phone is pretty similar to Xperia Ion in terms of specification. There is no announcement on pricing and launch dates. Do note that this devices is ready for Icecream Sandwich and who knows, by the time it is out Sony will put ICS on it. 

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• [CES 2012] Sony Takes Wraps Off The 'Nozomi', Makes It Official As The Xperia S (androidpolice.com)
• Sony Ericsson Xperia S breaks cover (pocket-lint.com)