of an early AMD socket FM2 motherboard has been posted over at VR-Zone forum and according to various reports we will probably see more motherboards and more details once Computex kicks of on June 6th.
Although it wasn't named, the MS-7778 model number clearly shows that it is an MSI motherboard. This appears to be either an early/engineering sample model or simply an OEM motherboard. The closeup of the socket also reveals that we are looking at AMD's socket FM2 motherboard that might be based on AMD's upcoming A85 chipset.
According to what we can see from a picture, it feature one PCI-Express x16 and three PCI-Express x1 slots, four memory slots near the APU socket, what appears to be mini PCI-Express slot, bunch of USB 2.0 and 3.0 ports, and display outputs.
Although more details and more motherboards might show up at Computex, AMD's official launch date for desktop Trinity parts is still Q3, or according to some rumours, August.