When staying true to life can be out of character If it's hot in Hollywood it's hot in Hong Kong, so product placements are all the rage on the silver screen. But you have to admire the respect of some productions for verisimilitude. Mobile operator SmarTone is one of the biggest sponsors of the Infernal Affairs sequel, a copsand-robbers drama set in mid-1990s Hong Kong. True to the times, the characters use the black, banana-shaped phones with slide-out mouthpieces that were popular then. Those black bananas were, of course, synonymous with CSL, the dominant network operator of the day. How tempting it must have been to give the actors phones just a few years ahead of their time, especially in an era when it would not be surprising to see George Washington sip a can of Coke in a Hollywood production. new virtual exec gizmo contrasts with turtles Hutchison Harbour Ring has unveiled its new thing in the shape of a keyless keyboard that projects a laser image of a keyboard on to a flat surface. Personal digital assistant users will be able to discard clunky fold-out keyboards and tap in data through the pen-sized beaming device. Liber Research analyst Stephen Leung reckons the Israeli-designed gizmo is cool but wonders how execs on-the-run will handle punching out e-mail on to a virtual screen while hurtling up lifts and travelling in cabs. Fear not investors who have seen the Li Ka-shing controlled company's shares increase strongly this year. Its staple business of turning out Playmates Mutant Ninja Turtles is still ticking along nicely.