Second, don't take execution lightly. Execution is everything. Again, the last few major tech products in silicon valley aren't moonshots. Most of the them are ideas that could have built 2001. Square could have been released on Windows Mobile 6.
What I'm simply trying to argue is that Google Research isn't inherently better than Apple's workshop. Moonshots are great yes, but its a bit too early to be sounding the bells. Microsoft Research had a similar position in the past and everyone thought they were ushering the new age, but it turned out to simply be PR. "The World of Tomorrow" at Disney Land (which probably hasn't been touched in 5-10 years) is chock full of a Microsoft Research moonshots that never caught on or weren't really practical. I see Google Glass heading a similar direction.