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

Ghattas said that authorities remained hopeful the number of visitor bookings would recover so pilgrims could enjoy the city's planned events, which included a Christmas tree lighting ceremony on December 15, and a choral festival before midnight Mass on Christmas Eve.

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It is for this reason the lighting of diyas has become a key component of the Diwali festival.

BBC: India��s festival of lights