I think the X7 shouldn't lose track of delivering a better hi-fi experience than the X5, by that I mean, better UI, better SQ and all the basic functions you would expect from a DAP in 2014. (Hello playlist)
Now, if then they decide to add WiFi, please make sure it's going to be useful! Other wise it will be just a feature that no one will use and will damage the main intention of the product (which I like to think is a great, high quality, flexible, amazing sounding player).
Memories come from the Zen with WiFi DAP. You could log in to servers to chat and talk about new music... also connect to windows messenger and yahoo chat 0_o
I don't need my DAP to browser the Web, install apps, or OTA updates. Now I do expect my 700$ DAP to have power user features and if this would be added via apps, then WiFi could be justified.
I'm not against adding WiFi, Bluetooth, or access to Google Play, but if is going to be included, please make sense of this features.