'Nightline' Daily Line, Dec. 3: William and Kate Are Expecting

6:09 p.m. ET: ABC's tech editor Joanna Stern reports that some of Apple's new iMacs' say: "Designed by Apple in California. Assembled in USA." Most Apple products, of course, say "Assembled in China."

Credit: iFixit

"It's the first product from Apple in quite a long while that says 'Assembled in the United States,' " Miroslav Djuric, iFixit's chief information architect, told ABC News.

Read Joanna's full story HERE

3:51 p.m. ET: ROYAL BABY FEVER: For those of us wondering what Hyperemesis gravidarum is, ABC's Sydney Lupkin lays it out.

Hyperemesis gravidarum, the reason newly pregnant Kate Middleton is in the hospital, is a rare but acute morning sickness that results in weight loss and accounts for about 2 percent of all morning sickness, doctors say.

The condition is sometimes associated with women having twins, experts said.

Read her full story HERE

Credit: Getty Images

1:33 p.m. ET: In an interview with Yahoo! Sports "In Depth with Graham Bensinger," heavy weight champion Mike Tyson said he caught Brad Pitt with his ex-wife, Robin Givens, during their divorce in the 80s.

"I was getting a divorce, but… every day before I would go to my lawyer's office to say 'she's a pig and stealing,' I would go to her house to have sex with her," Tyson said. "This particular day, someone beat me to the punch. And I guess Brad got there earlier than I did."

Credit: Russell Turiak/Liaison/Getty Images

Read the full story HERE . "Nightline" anchor Terry Moran spent time with the champ this summer as he was about to launch his one-man Broadway show. In the interview, he told Moran he credited his role in the movie, "The Hangover," for helping him get sober. Watch the interview HERE:

11:10 a.m. ET: BREAKING: Prince William and Kate are expecting!

Credit: Jonathan Nackstrand/AFP/Getty Images

From St. James Palace: "Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting a baby."

Read the developing story HERE

10:03 a.m. ET: One of Twitter's newest members: The Pope.

Credit: Osservatore Romano/AP Photo

ABC's Phoebe Natanson reports that Vatican media officials announced today that Pope Benedict XVI will send the first official tweet from his personal account, @pontifex, Wednesday, Dec. 12.

Read the full story HERE