Apple out of ideas? No

The almost universal reaction to the iPhone5S is meh. So it's a bit faster and it's available in gold. Apple is not innovating any more and they are as doomed as a doomed thing with doom tattooed on its forehead.
Actually, the iPhone5S has two innovations that could change the way we live.
The first is the co-processor that takes data from the accelerometer, gyroscope and compass to create a record of every movement the phone makes. From this, it can generate a picture of exactly how active you are in a way that none of the activity monitors currently on the market can.
The current generation of wristband activity monitors are very limited by the need to minimise weight and maximise battery life. Bands such as the Fitbit have only an accelerometer, so they have difficulty detecting smooth forward motion such as cycling, for example.
Using the iPhone to do the measurements means the wristband can be used to measure the one thing the phone can't - pulse rate. I suspect that the rumoured Apple iWatch will have a pulse rate monitor and a simple screen that will give the readings of interest to athletes such as cadence and calories burned, as well as alerts and something that no current fitness monitor does - the time.
In short, the iWatch will actually be a device that makes sense and people might actually buy.
The other potentially life-changing innovation in the iPhone5S is the fingerprint sensor. As of now, the sensor only acts as a security device for the phone and for purchasing stuff on iTunes, but I suspect that Apple put on these limitations because it is not entirely sure the system is robust enough to support a universal payment system.
In a few months, however, Apple will have the data from hundreds of thousands of iPhone5S users. If the fingerprint system is accepted and weathers the inevitable firestorm of hacking, it will be ready to be used as an identification mechanism for mobile payments.
And that would mean all the other phone manufacturers will install fingerprint sensors too. Which might finally mean the end of cash money, predicted now for so many years but never quite achieved.