Yeah yeah, but "Tablet PC" is not the same device as we mean today when we say tablet. And also, I guess by "successfully making tablets" you mean "being the only mfg who bothers with the incredibly tiny niche of Tablet PC buyers consisting of warehouse operations, hospitals, and about 20 really nerdy college students." And even then, much of that niche may in the future go to "real tablets" that run mobile OSs instead of Windows XP/7. For one thing, "real tablets" in the modern sense cost about a third of those huge pen-based Windows things.

I have a tablet pc. After getting rid of windows, I came to love it.

That said, I would not recommend it to people. The iPad actually can, and does, do the job of a tablet pc far better than any tablet pc I've used.