A PlayStation 4/PlayStation Vita bundle is an "interesting proposition," but no such offering is in the works right now, PlayStation hardware marketing executive John Koller told GameSpot during a media event this week.

"We certainly would look at it. I think it's an interesting proposition," Koller said, noting that Sony has "no firm plans" to offer such a bundle right now.

Some retailers have bundled the PS4 and PS Vita together before, but so far, Sony has yet to offer an official SKU that packs both pieces of hardware together.

Though Sony hasn't released an official PS4/PS Vita bundle, customers are increasingly buying both devices together, Koller said. "You see movement of Vita with PS4 at that time of purchase," Koller said, referencing retailer checks. "So I think we need to take a look [a PS4/PS Vita bundle]."

"I like the idea personally of being able to put them together if not as a bundle but as a marketed experience point," Koller said. "So Vita we think fits very, very well as a companion device for the PS4. But, I stop there because I want to make sure Vita retains the beauty of what makes Vita Vita. And that's that it's got it's own unique kind of bespoke games."

Koller added that the PS Vita has sold "very well" since the PS4 launch in November, though he didn't offer a specific sales update for the platform. Finally, he explained that the PS Vita represents a unique proposition within the Sony ecosystem of devices, as it is the only one that can play PS Vita, PS4, and PS3 games (when PlayStation Now rolls out).

One reason why Sony may not be looking at a PS4/PS Vita bundle just yet could come down pricing. Right now, the PS4 sells for $100 below the Xbox One, and bundling a $200 piece of hardware would potentially reduce Sony's competitive edge.

Yesterday, Sony announced that the PS Vita Slim will launch this spring in the United States through the $200 Borderlands 2 Limited Edition bundle.

We'll have more from our conversation with Koller later.