A widget indicating the current mood of the user would make a nice addition.
A pre-defined list consisting of many 'moods' like-Happy, Sad, Excited, Bored, Tensed, etc with an emoticon related to the mood.
For example, I have exams now, so i'll select the mood as 'nervous' or 'sad' from the pre-defined list.
It would be useful I think.
What are your opinions?

I think it's a good idea Prag. We'll look into it