Well, it's even worse than that. Many modern touchpads support multitouch in hardware but it's disabled in drivers [1]. I believe it has something to do with

Well, it's even worse than that. Many modern touchpads support multitouch in hardware but it's disabled in drivers [1]. I believe it has something to do with Apple sitting on multitouch patents. Even Android phones were supposed not to have multitouch because of Apple. ----- [1] For example Synaptics ones in Thinkpads. You can get multitouch using modded drivers.