This chapter really was just to reinforce everything you've learned throughout this book. The final chapter looks at some security issues surrounding iBeacon and also what the future holds for the technology.
As far as coding goes, this was the final tutorial in the book. I hope you've really got to grips with the amazing potential of this technology and you are well armed with all the coding skills you need to build amazing proximity-powered applications.
In the next chapter, we'll discuss some of the security aspects of deploying iBeacon solutions including spoofing, hacking, and overcoming user fears with good user experience.