It is declining. Massively.
And I don't think it can be reversed.
Nobody over the age of 12 is going to carry around a dedicated game handheld in era of the smartphone. And those under 12 are also under assault.
Forget DS-PSP, Nintendo's handheld shipments are way down on a yearly basis from the GBA era too. Saying "well OK but before the GBA era Nintendo shipped less" ... yeah and? Back then they no.1 in the console business with the SNES and NES, something they are not even close to today. So they can't afford any decline in the handheld business, but they are getting it anyway.
We saw it in the financial statement thread, but the GBA had shipped something like *14 million* more units at this same time as the 3DS has. Even forgetting the DS, clearly something is very wrong with this market.
