Well, one that springs to mind for me is Palm. Their devices punched well above their weight when it came to performance vs their Windows Mobile PDA competitor

Well, one that springs to mind for me is Palm. Their devices punched well above their weight when it came to performance vs their Windows Mobile PDA competitors with better battery life but couldn't stand up to the corporate demand for buying things with the Microsoft sticker on them. Their later smartphone products were in the same position when Apple debuted the iPhone and was able to bring boatloads of cash from their ipod successes to bear on pushing both Palm and Windows Mobile out of the smartphone market entirely.