A lot of people are just not into bright colors. I would love to see a theme like this concept
http://compixels.com/8741/sony-ericsson-xperia-leon-smartphone-running-windows-phone-8-concept

Release the feature which enables users to project their wp7 device to PC screen through the app "VidStream", and the built-in changeusbprofile app.

I love windows phone 8, however I would love to see an option to lock the phone in portrait mode otherwise it is impossible to use when laying down

Replacing or adding Pattern lock or dot lock screen will give Windows Phone an EDGE over others

Show the actual alarm time of the next alarm that is set to go off instead of having to unlock to see.

Just as the iPhone allows you to tap the top of screen in any app and return to the top of a scroll list, Windows Phone should do this to prevent the need of "multiple" flicks to get back to the top of a scrolling list.

Allow NFC to activate/deactivate Bluetooth, WiFi volume, etc. all with a single NFC tag. (Not having to go to each menu and manually changing it)

Start screen / audio profiles change based on your location; school, work, home, general..etc..would let you customize items on the start screen and audio preferences

Calendar notifications have this feature but not the system Alarms, the default is 5 minutes but I want to be able to set how longthesnoozeshouldbe

Windows phone needs mp3 songs as ringtones without the need of cutting them on my own and not longer than 40 sec. And also Object Push Profile (OPP), which lets you send and receive items such as contacts, pictures, and music over Bluetooth through mobile-to-mobile, or mobile-to-computer connections.

Permit multiple select option for pictures, videos, docs, sms, music, etc.
Allow multiple select on the search result when adding people to group.
Apps should be allowed to select multiple items (ex. pictures) if the apps needs to read/import/manipulate that item (picture/file/whatever).

I would like to be able to control the light for the capacitive buttons. A lot of people on many forums seem to agree with me that they are annoying to have on while reading or watching a movie in a dark room.
At least, give them a time-feature.

I think it is highly unfair if Microsoft doesn't bring accessibility features of windows 8 ( text size, screen magnifier etc...) to existing mobile using windows 7.5.
This will ensure that people with low vision can use mobile much easier, without the need for spending extra $500 to buy a windows 8 phone. My father, who is over 50, has 1 lumia 610 mobile, and he often complains that smt the text is too small to read that he has to use glasses.

Integrate landscape modus in the Windows Phone 8 UI
also remove the 3 windows touch buttons below the screen with an larger on screen buttons like Android uses
and refine the design of the lumia 900 with an thinner body..

click the links below to imagine my idea's..

http://static.phonesreview.co.uk/wp-content/phoneimages/2012/04/lumia-pureview-9203.jpg

http://wp7lab.com/wp-content/uploads/2012/04/nokia-lumia-920-windows-phone-concept-features-quad-core-processor-large.png

Need a way to close tasks in the task switcher without having to select them and press back (arrow) multiple times.

Add undo to text messages, email, everywhere you can type by clicking an undo icon (like and near the paste icon).