Acer also has a new all-in-one PC, shown by Microsoft's Steve Guggenheimer in his keynote Wednesday, with a large monitor that can swivel on its side into portrait mode. He also showed an Acer laptop whose ports are hidden at the back to make it as thin as possible, but which drop down when needed at the push of a button in a half-centimeter panel.
Yet another Acer laptop, the aptly named Yoga, has a screen that folds out flat through 180 degrees, and then keeps folding all the way back on itself, so the device becomes a tablet with a keyboard on the back. Why? Maybe just because it can.
Not everything at the show is gimmicky. There are standard laptops in all sizes, made thinner and lighter thanks to the upcoming "Ivy Bridge" variant of Intel's Atom processor, which can get by with smaller, lighter batteries. Gigabyte Technologies showed a laptop with a carbon fiber casing that weighs just 975 grams, lighter than Apple's MacBook Air. The X11 will go on sale in the U.S. and Europe later this year from $999.
At the other end of the spectrum is Dell's Alienware M18X, a hulking machine the size of a small briefcase with a "starting weight" of almost 5.5 kilograms. Billed as the "world's most powerful laptop for gamers," it's priced from $1,999 on Dell's website.
Toshiba, meanwhile, announced an Ultrabook with an unusual, 21:9 aspect ratio, for watching movies in wide-screen format without black bars eating up screen space at the top and bottom. The Satellite U845W (called the U840W in Europe) is due later this year, priced from $999 in the U.S.
There's also variety in the smartphones, with each trying to find the sweet spot for screen size, and most larger than the 3.5-inch iPhone. Samsung's Galaxy Note, one of the biggest at 5.3-inches, has been disparagingly called a "phablet," as it's midway between a phone and a tablet. Its Galaxy S III, due later this year, will be 4.8 inches, while HTC's One S is 4.3 inches.
Asus wins for the most out-there smartphone idea. The PadFone, which was announced in February and just went on sale in Taiwan, looks and operates like a normal Android phone but also snaps into the back of a tablet, in a concealed dock. The tablet is useless without the phone, but with the phone inside, the tablet uses its OS and processor and effectively gives the phone a larger screen.
The tablet has its own battery and can recharge the phone while it's in the dock, and the whole set-up can snap into a keyboard, turning it into a laptop. There's still no ship date outside Taiwan.
The designs here highlight a basic difference between Microsoft and Google on the one hand, and Apple on the other. Apple -- which doesn't attend Computex -- spends years designing a small handful of products until it releases something it thinks is perfect. Microsoft and Google provide software, tools and some guidance to a multitude of vendors, and let them compete on the implementation.
The result is more variety in the worlds of Windows and Android, and sometimes lower prices, but whether the products here will be more successful remains to be seen. One thing is for sure: It's become hard to say what some of them are.
"It's hard to say what's a tablet and what's a notebook now," said Gartner analyst Tracy Tsai. "Every notebook is a tablet, or every tablet is becoming a notebook. It's all mixed together."