Comcast ( CMCSA - news - people )--not to talk your ear off on all this stuff, but Comcast just came out with a software that works on the iPad that acts as your remote control, acts as a preview device.

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Think of the Bluetooth headset: it's a really sensible way to use your phone without having to take it out of your pocket so sensible that there's really no reason not to keep that headset in your ear most of the time.

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While wireless headset manufacturers battle one another to shrink their wares until they completely disappear into your ear canal, organizers of the Switched-On London lighting festival (not named, unfortunately, after the excellent column by NPD's Ross Rubin) have taken the opposite tack: for one week in February, they've transformed the famous Tower Bridge into the world's largest Bluetooth device (narrowly edging out the PS3).

ENGADGET: This week only, London's Tower Bridge is the world's largest Bluetooth device

When you get a call, the thing's got to come off your wrist and be held up to your ear unless you've got a Bluetooth headset ready to rock, but worry not: Neutrano's also showing a model of its Nutec WristFone that pops off at the base of the wristband so you don't need to unstrap it from your wrist.

ENGADGET: Neutrano's Nutec WristFone watch phones at CTIA Mobile