The whole leapfrogging thing implies (to me) that you are not only doing more things than someone, but also doing them better. Yes, FroYo has added a ton of great features to android, however I still feel that Apple has not yet been leapfrogged in the most basic parts of design for core parts today's mobile experience.
The most obvious of these to me is text entry via touch screen. There can be no claims of leapfrogging until I can use an android device's touch screen to SMS someone without pulling (what little is left of) my hair out.
Next is the whole activity response/switching thing. Yes, blah blah, tradeoffs for multitasking, whatever. Why not have a way to turn off non-system multi-tasking in favor of super lightning quick responsiveness on android? It's enough to almost throw the phone across the room when you are trying to answer the phone and key presses don't register.
In terms of industrial design, there have been no great leaps by any of Google's hardware partners - Every single android handset I've used has felt like a cheap, disposable piece of junk (G1, Hero, N1) or a giant tank (Droid) compared to the first generation iPhone. I haven't played with the incredible yet, so I still have hope, but not much.
Google and Apple have taken two different approaches to mobile. Google is trying to throw as many different features into android in as short a time as possible, and Apple is set on perfecting each detail before incorporating more. This is fine, it's two different philosophies.
After my prolonged experiences with the G1 and the original iPhone, I'd much rather live day to day with software and hardware that has been developed to Apple's design and usability standards. (I'm talking about the system software here, not 3rd party apps) I hope in the coming year Google has a chance to go back and spend time polishing what they've accomplished so far instead of continually heaping feature upon feature onto android.
If Google can get back to user interaction basics and stop mucking around with some of their other tangents, they could make android great, not just passable.
Or maybe I was just too abused by my time with the G1 to judge this argument fairly anymore, definitely possible.