A thought
It just occured to me that we are hearing rumors of two new products from AW. The second we are talking about in this thread, but weren't we also hearing something recently about a replacement for the A51M-5500 ? What if the gpu for that product were compatible with the 5500/766?
It makes sense until you think about the number of 5500/766 owners that would upgrade the gpu rather than buy a new computer... back to the drawing board.
