I like the smooth sophistication and people oriented design of the new OS. But as a business user coming from Windows Mobile 6.5, there were highly useful features in WM6 that are now gone in WP8. I want to see these capabilities return:
1) Notification when email arrives in a subfolder
2) Maintain tree hierarchy for email folders instead of treating everything flat
3) Show, adjust, and sync star ratings of music
4) Use camera as a TWAIN source
5) Bluetooth Fax/Modem service
6) Show which phone number used and duration of call in Call Log
7) Multiple volume and alert profiles (indoor, outdoor, meeting, silent, etc)
8) File explorer
9) Central notification center
And these are a few features to add or improve
1) Show more than one appointment on calendar live tile
2) Media streaming from Windows Homegroup when on home network.
3) Be able to shrink header and caption font size. Way too big. To Do list font is enormous. Font size slider only affects body text.
4) Problems related to having a Google Account without a Gmail account