Of course, I'm under non-disclosure, so I'll be brief (and careful):
- The conference was light on Mac OS X, but most app developers haven't adopted some of the most powerful aspects of Snow Leopard yet: Grand Central Dispatch and OpenCL to name a couple. There is a lot of goodness yet to be extracted from OS X by developers; Apple doesn't need to rev it yet.
- Apple is investing big-time in Dev Tools (Xcode), to the benefit of both iOS and OS X. All Apple devices (and OS's) are positioned to take great advantage of emerging technologies.
- Having seen Apple's development and debugging tools for iOS devices (iPhones and iPxds), I can't see how Android can its multiple manufacturer's can keep up. Sure, they can build a lot of devices and throw them at the wall to see what sticks, but will they ever be able to fine-tune these resource-constrained devices to the same extent that Apple can, with it's tightly-managed platform and well-matched tools? We'll see...