Beautiful OnesThere's always been something of a compromise with portable speakers--mobility usually relegates the sound quality to something less than great. That's even more true with Bluetooth devices, where subtle notes can get lost in the ether. But the Bose SoundLink Wireless Mobile speaker produces astonishingly rich sound that doesn't distort at high volumes. Bose does all of this in a compact, elegant device with an aluminum grill and polished chrome sides. And the company swipes a design cue from Apple's iPad 2 Smart Cover by including a magnetic protective cover that unfurls into a stand, and automatically turns the speaker off when it's folded over the device.