What Sony needs to do is start leveraging some of the contacts they have with Sony Pictures and produce some kid-oriented content for their platforms.
Why did the Vita fail in the west? Because Sony had nothing to sell to kids, which is the main demographic for handhelds in North America. They failed to develop any long-term IP with the PSP that would hook kids for the future. That's a fundamental mistake. Instead, they marketed toward the segment of the population that had moved on to smart phones and tablets and it bit them.
What they should do is go to someone doing well in cross-media for children and offer to form a partnership where they would develop a quality series of games and other media in exchange for exclusivity. That could include film, games, and even Skylanders type toys.
Off the top of my head, imagine a high quality Monster High game with a lot of promotion. There are a slew of possibilities, especially with IP that are trying to gain traction.
That's what Sony should be looking into.