A word to iLounge’s readers: this might not be the smartest time to buy a pair of expensive new earphones with remote and microphone functionality. As you may know, Apple recently updated the 2008 iPods—and 2008 MacBook computers—to include brand-new headphone ports that have two new features: microphone input and remote control functionality. Plug in the right pair of new headphones, and both new iPods and MacBooks now let you change…