The short answer is that Android-based phones like the Nexus One and Desire are a far bigger threat to Apple's stranglehold on the NA smartphone market than any

The short answer is that Android-based phones like the Nexus One and Desire are a far bigger threat to Apple's stranglehold on the NA smartphone market than anything else to date. This isn't about "protecting their inventions", it's about throwing up roadblocks to their biggest potential competitor.