Just a few weeks ago Sony announced the Xperia Go, which is a successor to the Sony Ericsson Xperia Activereleased last year. Like its predecessor the Xperia Go is water and dust resistant.
The Xperia Go has been filled at the FCC in the US, which should mean it isn’t too long until hand phone is released in the US. A release date for the US however is still unconfirmed, as is pricing.