The Slacker music player will download songs directly from the Internet or satellite radio. On the one hand, it’s nice to see something innovative in the music player market. On the other hand, keeping songs you like will mean subscribing to the service, and subscription models for song downloads are a tough sale. The Slacker will start at $150, with a 2-gigabyte flash drive, and should be available next month. Get more info at slacker.com.