Comparing MP3 players and iPOD to eVU is not apples for apples.

For an IFE device that does what eVU offers, EDIG is the leader with a stated 20 hour life. Fred mentioned at the last SHM they have acheived 25 - 27 hours in testing, but gaurantee 20.

A while back, an article was posted about Samsung partnering with some company in Finland I think (?) and it had less than 10 hours.