Ending years of intense speculation, which product did Apple introduce in January 2007?

Which singer, born John Stephens, won the 2006 Grammy for Best New Artist with songs like "Used to Love U"? The 2006 Best in Show winner at the Westminster Kennel Club Dog Show was a "colored" variety of which terrier breed? The 2006 film "Zyzzyx Road" cost $2 million and earned just $30 in U.S. theaters. Which actress, then playing Izzie on… Which 2007 Michael Bay film features giant robots battling over a powerful cube called the AllSpark? In which 2007 film does George Clooney play a "fixer" who cleans up messes for a New York law firm? Which British singer won the Grammy for Record of the Year for her 2007 hit "Rehab"? Which 2007 film features the famous line "I drink your milkshake! I drink it up!"? In which 2007 film does James McAvoy's character try to get evacuated at Dunkirk and return to Keira Knightley's charac…