Do you want some complelling feature in work item form that is missing? Now you can suggest those ideas and even build it to share across community. Codeplex project is created for this purpose. Here is the project link: http://www.codeplex.com/WitCustomControls .
I am leaving on vacation soon, so I won't able to reply to threads there, but please leave your thoughts, ideas and feedback. Also there won't be activity in this blog also till mid Jan. Have nice holidays!