Google announce that "you can now explore Street View imagery on all seven continents, with the addition today of Brazil, Ireland and Antarctica. You can now see images from around the world spanning from the beaches of Brazil, to the moors of Ireland, to the icy terrain in Antarctica."
Also, added new imagery of Street View to Google Maps for mobile so you could explore the world at street level right from the palm of your hand. To use Street View on Google Maps for your supported phone, select a place on the map and then choose the Street View option if available. With an Android-powered phone, try hopping across each continent with the new Street View smart navigation.
More Info: Street View Gallery