One startup I recently met is Nextpeer. Nextpeer has a system that allows any developer to simply and quickly turn any single player mobile game into a live multi-player experience. The product is FANTASTIC. For game developers all over the world, this solves an enormous pain point. For small and medium sized companies, building scalable multi-player systems is not easy. Nextpeer does all of that for the developer in a well designed, slick experience. More importantly, multi-player enabled games keep players coming back for more, resulting in high engagement numbers. For game users, this is sweet as well — they can instantly play their favorite single player games against their friends and other users around the world. Nextpeer has the opportunity to become THE multi-player system that powers the mobile gaming world.
Keep an eye on this company. They are early and certainly have a long road ahead of them, but they have tremendous potential. If you’re an iOS developer, they are now out of beta and you can sign up at http://nextpeer.com/