Sony this week unveils its PlayStation Portable which it says will revolutionise the handheld gaming market.
Sony Computer Entertainment CEO Ken Kutaragi said the PSP would go on sale in Japan later this year.
Kutaragi said it would be launched in the rest of the world next spring - but declined to reveal the selling price.
He wants to first see how gamers react when it's shown with playable games for the first time at this week's Tokyo Game Show.