In ten years, it seems like everything's changed — but maybe things aren't so different after all.

In 2002, Acer revealed a PC that was also a tablet, the TravelMate 100. The convertible device used a swiveling central hinge, allowing the screen to rotate 180 degrees and fold down on top of the keyboard so you could hold it in two hands like a tablet. The concept never caught on in a truly mainstream way, but has occupied a niche ever since the TravelMate's introduction.

Now, a full decade later, Lenovo is trying once again to take the rotating laptop mainstream by bringing the swivel back with the new ThinkPad Twist. Fortunately, though, the hinge is the only thing that's stayed the same: the ThinkPad runs the touch-friendly Windows 8 instead of the horrid Windows XP Tablet PC Edition; it has a 2.6GHz processor, 4GB of RAM, and a 500GB hard drive, all specs that would've seemed like science fiction in 2002; and at $899.99 it's a lot cheaper than the $2,500 TravelMate 100.

The TravelMate 100 concept has clearly stood the test of time. But ten years after its introduction, have hardware, software, and processing power finally converged to a point where a swiveling convertible like the ThinkPad Twist makes sense?