Apple sure is running on all cylinders. I wonder what's next. As far as the bigger picture is concerned. iPhone 5, 6, and beyond. I'm not even really that excited about LTE/4G on AT&T any longer because as of 9/30/10, my average downlink speeds have virtually never slowed to under 5Mbps anymore. Sure, I'll take more speed, but as Apple is unlikely to roll out an LTE/4G iPhone this year, and for the fact that we'll soon be up to the HSPA+ flavor of "4G" with new and much higher theoretical speeds of 14.4Mbps and later 21Mbps.
Real-world speeds of 10-15Mbps via HSPA+ is 4G as far as I'm concerned.