I experienced some different seating on my C-class 777 return flights: AMS-JRO.

The headphone socket is now positioned at the back underneath the control. Almost impossible to plug in without getting up.

The screen is no on the back of the shell in front. It is bigger than before, but no change of angle is possible.

At the start of each flight a pre-recorded video anounced that SMS and email were available in-flight. This was also noted in the June Holland Herald (p91 I think). The cabin crew were not happy ith KLM having done this, as they told me that the systems are coming at some point, but are not yet in place. They have to keep responding to queries on this.