WheelTug (an AirInsight client) recently attracted a lot of industry attention when it announced El AL as its launch customer. The company just released a video simulation (created by Airport Research Center GmbH) of how its technology enables an airline to save operational time at the gate. Adding time saved (assuming 8 ops per day) an airline could save nearly 600 minutes per month.
WheelTug is again testing in Prague this week
YouTube video taster
http://youtu.be/cYYOMJH4gYg