Based on a filing with the FTC, Robert Scoble is reporting that Apple bought Siri and its voice-driven personal assistant. The iPhone app, which we covered in February, uses over 35 APIs to find the exact data the user seeks. With a price rumored at $200M, this is by far the most paid for a mashup.
FinancialForce.com, focused on building cloud based business applications on the Force.com platform, has released an API for its accounting application (i.e. The FinancialForce Accounting API). The API gives access to the entire suite of accounting tools available through the accounting platform (e.g. cash management, reporting and dashboards, ordering and billing, etc.). Although FinancialForce.com built the application with Force.com, and the target audience began with Force.com developers, the application has been integrated with many platforms and APIs (e.g. Google Apps, Basecamp, Facebook, PayPal, etc.)