Thank you for your reply. You have some good points and I don't think you are being a troll. I'll try to answer them.
1. Its very true, and if you go read Bill Buxton's multi-touch paper, you will also get a great history of the multi-touch input device. The key here is using an input device, with having the OS recognize it as such so it allows you to have multiple numbers, and mixed numbers of each. The main difference is that its now a recognized device seperate from the already existing devices. So, if you use a Wacom tablet, yes you are using a stylus, and that is recognized as such by the API. If you use a touch, right beside your Wacom stylus.... it sees a touch, not a mouse click, nor a stylus.
The difference isn't so much in the UX, as much as its in the software backend of it. The benefit of it though, is you can have much more rich interactions using a multitude of different manipulations and gestures from mixed sources. It allows for offhand interactions, tapping with your thumb as you are about to paint in Photoshop, etc.
So an iPhone sees touch, and you can use a jury-rigged stylus, but thats because you are tricking the phone into recognizing a touch.
You also bring up an interesting challenge about selling the multiple inputs. I think what I would say to you to sell it would be something like:
What if you never had to remember another shortcut key combination again? CTRL C is a thing of the past.... never reach your pinky and thumb to stretch to hit two keys again.
2. You have a valid point about recognizing who made the choice to buy Fingerworks. I would seriously buy this person dinner in a heartbeat. Whoever that was, really turned the tide for Apple as a whole and saved their company.
Now let me give you an idea why I put so much value on him. They had literally, almost nothing in regards to touch. They had a small team that was struggling. They recognized and bought Fingerworks and by doing that, brought in one of the preeminent geniuses of the input world. I think Wayne is far underrecognized for his contribution to touch and multi-touch and deserves all the credit and thanks we can throw at it. It would be different, if he went to a team of IXDers and helped out... much like what I am doing. No, its different because when he went, there was nothing, and he created a wonderful system. I hope that explains my point a bit better? That's not a dig on Apple at all. I think it was brilliant and commend them for scooping up genius.