Seems as though Twitter has been making some changes lately.  Here are a few things I have noticed recently change:

• They changed the size of their logo.
• The bio text in the right panel of your profile is now italicized.
• They added a friends timeline feed to the bottom right panel of your main feed.
• They added a user timeline feed to the bottom right panel of your profile page.

Could this be an indication of some more changes/enhancements coming down the pipeline?  Seems like many are waiting for the big announcement on how Twitter is going to monetize.  Maybe these changes are a small step towards something bigger in the works??  We will see.