"...Brand pages will enjoy the same redesign as other profiles on Twitter (in the new “me” section) with two key differences:
- Brands will be able to customize a large header image that looks like it will span the entire width of the page, to display their logo and tagline more prominently than before.
- Brands can “pin” a tweet to the top of their timeline, which will include an expanded view of any multimedia that it may contain.
Here’s a screenshot of what the new brand pages will look like:
Excerpt from an original post on mediabistro.com