Samsung officially confirms the Samsung Galaxy S 2 and Samsung Tab 2 on their Samsung Hub page. The images just surfaced on their Hub page. The specs are same as to the specs which were leaked before.
Galaxy S 2 sports a 4.3-inch Super AMOLED display, running Android 2.3 with a dual-core processor, 8MP rear camera which records and plays video in HD.
Maybe we’ll get an official announcement from Samsung soon at the Mobile World Congress event in Barcelona.