Getting a younger mentor

I read an article about getting a younger mentor (in Norwegian at http://www.konsulentguiden.no/index.cfm?id=147082&side=1).
The article said that it is a trend among middle-aged leaders to get younger mentors.

It`s called “Reverse mentoring” and Jack Welch (www.welchway.com), then chairman at General Electric (www.ge.com), was maybe the first to try this.
When he ordered 600 of the leaders to get a younger mentor in 1999.

Matt Starcevich at Center for Coaching & Mentoring in Oklahoma (www.coachingandmentoring.com) says that reverse mentoring can give advantage for the organization.
He found out that 41% used reverse mentoring to learn technical expertise, and 26% used it to give leaders a more youthful perspective.
Of course it is important that the older leaders don`t have any prejudice against younger people.

What do you think about reverse mentoring? Do you have some experience with it? Tell me!