There are definitely some silly little things that Microsoft need to look at. First, as mentioned is the seriously long menu or app list. A drop-down folder should be owkey I guess. Second, is separate volume controls for media and ringing tone. I always set my ringing tone to 25 and above and it will stay like it. As I enter the media and play some musics, it will go BOOM! Microsoft needs to have a look at this, don't know for how long already this thing is. Third, is a more efficient multitasking. User should be able to completely kill the app directly from the multitask screen (an 'X' button) instead of having to go into the app and press the back button repeatedly to kill it. I know those apps go dormant when not in use but I just feel much more comfortable just by killing it. Haha! Finally, a universal search feature which is, well, missing in WP8 and I think so in WP7. I need to search for contacts, calendar, and documents quickly so a phone search is pretty much needed.
While there are some that you know, just being picky but those stuff are pretty much very needed so I really hope Microsoft will really consider to eliminate those problems immediately because it has taken so long that some of them are carried over from WP7. Whatever the complaints, Windows Phone is still my favourite OS and will never consider moving to Android or iOS. I'm giving them my love, now Microsoft, reply back my love to you =P