Yahoo's Konfabulator buy and Yahoo APIs

Steve Rubel covers Yahoo's acquisition of Konfabulator.  Reading the tea leaves (and the Konfabulator site), this deal is driven by Yahoo's desire to build a committed developer community by continuing to enhance their APIs and provide lots of "consumer" applications for web apps developers.  This is right out of the Microsoft playbook (never a bad thing).  Win the developer community to win the consumer.  As a consumer, I am eager to see both what Yahoo does with this and how Google, Microsoft, eBay and Amazon keep pace.