ipod do not interfere with radio signal. dont mix ipod with iphone.

basically pda, mp3 player, laptop, camera, mobile phones on airplane mode can be switched on during cruising. the only time it is not allowed is when the plane is taking off or landing or during taxi. listen to the instruction, with long haul flight, they will tell you when you can switch on your electronic devices except phone. the announced it every first time when the seat belt 'on' indicator is switched off and last time when the light is on, ready to land.

and wifi is allowed on plane actually. i have used wifi numerous time on board because the plane (SIA) was equipped with free wifi since 2006.

nevermind all the hype of disruption on handphone signal to the radio system in the phone.

in close time we can see handphone can be used on the plane. just like wifi on the plane, one year after the announcement of possibility of wifi on the plane, i already saw it on the SIA plane. and handphone on the plane project was already announced sometime mid of this year.