What updates would you like with new windows blue update or with later ones?

Question about your #3. I agree we need a separation of volumes, but are you asking for one for notifications (i.e. text messages, toasts, and one for incomming phone calls?)

I think a better option would be to have one for ringtones AND notifications, and one for Music, video, games, & other) You could even throw in a 3rd one if you want an alarm volume, but I don't mind the fact of the alarm just being set to the max with no way to adjust it.

Agree with the rest of your list though.

You are right, the ability to control all three: media, notification and ringer volumes separately is something that is needed.
 
Does the latest version of WP8 allow any sort of file to be attached to an email? W7.8 only allows pictures as attachments unless you go in through another way and 'share' the file. If they haven't fixed that yet, then that gets my vote.