There might be some concern over the fact the iPhone 4S isn't the leap everyone hoped for, especially in the wake of Jobs' passing, but mobile space middleware king, Unity, is a perfect fit for the incrementally updated phone. At least that's according to CEO David Helgason.

"Nobody doubts that the 5G, a mythical beast at this point, will be awesome too, but I think it's smart for Apple to pace themselves," he told Gamasutra.

"[With 4S] you can throw more content at it, high-polygon meshes, more advanced shader effects, more beautiful stuff," he added. "Consumer journalists will criticise it, but it's perfect for developers.

"You can put some extra effort into making sure it looks prettier and has some extra coolness running on a 4S, but you don't end up in a situation where you have to build something completely different."

It's an interesting angle on the development side of smartphones, and given the strength of Unity as a cross-platform engine, equally good to hear the 4S will offer a better, more stable home for the booming indie development scene these devices helped blossom.