Sears Tower is moved to Navy Pier (and being renamed to Willis Tower)

Photo courtesy josephp via creative commons license
Wow. They moved the entire Sears Tower over to Navy Pier. And they built a huge dome over it. A few questions:
1) How did they get the Sears Tower to fit inside Navy Pier?
2) If there is a dome over the Sears Tower, then isn't the dome America's tallest building?
3) What are they doing with the land left over from where the Sears Tower used to be?
If I may make a suggestion for question 3. They could fill the entire empty lot with a unique collection of all the mini souvenir statuettes of the Sears Tower. Each one would be different, and it would fill the entire lot with different interpretations of the beloved Sears Tower (now located in Navy Pier).
UPDATE: They are now renaming Sears Tower to be Willis Tower. Whoat!? First they move it to Navy Pier, now they are renaming it?