S, S and more s...

So as most people know apple has a habit to name their 2nd iteration of s newly designed iPhone #S. And many rumours are now speculating that apple is planning on adding solar to their devices (They've since filed a patent also). So a s it seems... ;

iPhone 3GS - Speed

iPhone 4s - Siri

iPhone 5s - Security

iPhone 6s - Solar?

I honestly don't think the technology is reasonable price wise yet for apple to introduce it this year, it would be nice, but doubtful. So do you think this is the route apple is going, or is it all a coincidence.

P.S this whole post might be "Captain Obvious" to some people, but... yeah