This won't make them universally popular, but if you're an iPod or iPhone owner, it's a perk. On Monday, United Airlines announces that the company is beginning to install iPod and iPhone connectivity features in its airplanes.

In cases where the technology is applicable, users can hook their devices up to the planes in-flight entertainment systems. Once connected, users can then navigate through music and video on the seat back televisions while charging the devices in the process.

According to the Crave blog, Apple struck a deal with United as well as Continental, Delta, Air France, Emirates and KLM to configure in-flight iPod connectivity.

The iPod/iPhone connectivity won't appear immediately and will, for the most part be installed on planes that make transatlantic flights and in some cases will be restricted to first and business-class seats. The first "iPod flight," United 936, will take off at 5:40 PM EDT on Monday in Washington, D.C., and fly to Zurich, Switzerland.

We're not sure if that makes up for a US$15 per checked bag fee, so let us know what you think over in the comments or forums.