Apple is now offering 90-second previews on a wide selection of songs in the iTunes Store, including longer samples of current hits rather than just stuff in the 69-cent bin.
Usually, the 30-second preview was supposed to be centered around the chorus. Yet sometimes it wasn't and it just didn't offer the same essence of the song. This longer window time will certainly be more appreciated and could boost iTunes sales considerably.
Take note that this is only available in the U.S. iTunes store for now. Just like Apple Insider did with the U.K. iTunes Store, I logged into my French iTunes account to listen to the Katy Perry's "Firework" again, which happens to be the #1 song on the U.S. iTunes singles chart now. However, in France's iTunes Store, not only does Perry's hit single not appear in the top 10 list, but only a 30-second preview is available. Oh, and it costs €1.29 versus $1.29. Lame.