From what the link says, party chat is an area they will improve. Corel, I hear what you say about the vibration, I'm only wanting the option though. Man I hate vibrating things. Took me eons to find the option in Forza, in Battlefield it does not even exist! The achievement thing would be nice. In terms of the connect to the web bit, I reckon you are spot on. I thought that is what it must be doing, Xbox Fitness can take an age to load at times. I would like them to build on the streaming capabilities of what they had with the 360. There is lots I love about it, but a bit of evolution will be sweet. I like the look of the tiles, and the pin thing is nice. Although I did like the old guide that used to pop up on the 360.
The keyboard also lags, and is much slower than the PS4 one. I would also like the predictive text bits, like I get on my phone. That would make typing replies a joy.