Let’s put a NewNet spin on Nokia-Microsoft. How about inviting Facebook to the party? As the biggest handset manufacturer in the world, Nokia’s pretty social already. Sure, Facebook will need to stay neutral across mobile platforms, but it concedes that is challenging, and Microsoft has some favored-nation status already. If it’s all about apps, the first five – or fifty – should be social. Microsoft integrates Facebook and Twitter feeds nicely, but could double down on that bet. Here’s some pretty examples. And get on that social search thing, at least for local entertainment. Foursquare can’t do recommendations very well, yet, but Google’s investing. You might have heard that Facebook has a bit of a rivalry with Google. After that, implement a publisher-friendly app subscription system. Here are some guidelines. Get to it, guys!