Could the same be said for the iPad and the TC1100?
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Um... no.
I had one of those TC1000's for work back in 2004 and it was a steaming turd of technology. It was slow, unresponsive, and just flat out didn't work well. Part of that was it's use of Windows XP with a tablet layer, part of it was the horribly under specced hardware. Part of it was the dismal build quality out of HP / Compaq, and mostly, it was totally useless without a keyboard (which normally didn't work). Mine had to be fixed 4 times by HP for faulty hardware....Bluetooth once, Network controller once, main logic board twice. I also went through 5 keyboards since they would just stop working due to faulty hardware. I was also responsible for a group that had these... 45 people. I believe all but 1 of them had problems. Needless to say, when the leases were up, we went a different route.
Form factor was similar to the iPad, in that in the "sans keyboard" mode, you could hold it. However, the bezel didn't do anything for you since the screen was not touch enabled, it used a stylus. Orientation had to be manually set... no sensor to adjust for you. It was way heavier than an iPad, way thicker than an iPad, had a different input method than the iPad, different operating system and software than the iPad.