The problem with touch screens, is that you have to look at them to see where to touch. With buttons, once you know their position, you can press them by feel, without looking. I'm sure some people will love the touchscreen, but I couldn't care less.
It makes sense that at some point WIFI will become standard issue. Of course the presence of the indicator may or may not mean this camera has it built in. My 60D has WIFI support, but requires the addition of an EYE-FI card.
Note the WIFI logo in the attached image: