Dex1138 points out a couple of Episode II-related tidbits from the Zam Wesell comic:

Zam makes a comment about Boba having better manners than his dad, no doubt his mother's doing. Jango mentions Boba doesn't have a mother.

And Zam reveals she's a Clawdite after shifting from a Dug to her human self.

And here are some of our own observations:

Jango was orphaned at a young age. His parents were farmers, then he was adopted by the people that trained him.

Zam Wesell does NOT kill Yarael Poof as we previously reported. Zam is present at his death, but General Khorda delivers the killing blow. Jango and Zam Wesell actually save Coruscant from being destroyed in that issue.

There's a hint of a romantic relationship between the two bounty hunters throughout both comics. Zam constantly flirts with Jango.