Complex sentence: Sony announced in April 2011 that it was ceasing production of the PSP Go to focus resources on developing the PlayStation Vita (then known as the NGP), but shortly thereafter SCEA clarified that the PSP Go would continue to be produced for the North American market.
Split into simpler sentences: Sony announced in April 2011 that it would stop production of the PSP Go to focus resources on developing the PlayStation Vita (then known as the NGP). Shortly after, SCEA clarified that the PSP Go would still be produced for the North American market.