We thought App.net had eyes only for Twitter when the project was funded and garnered its first 20,000 customers. Today, a post on the company blog reveals that its sights are set much higher than mere messaging. Rather than provide just an ad-free alternative to Twitter, it turns out App.net plans to become a social app platform through its new File API and cloud storage services. The API gives devs the tools needed to build any and all social applications they c