At first glance google earth was rather vast in features and a simple user interface. After navigating around a bit. I found more basic functions to be very useful such as looking up my home address and seeing what is near by. Also directions were easily brought up and you had the option to take a tour which is a version of a video turn by turn. This is a great feature and allows you to be aware of your destination. The layers are a bit bothersome but I particularly found the places of interest feature to be interesting although it doesn't seem very updated. Another feature I found very intriguing was the sky feature. This was changeable under the view settings and it was really interesting and useful for astronomers. I wasn't able to find any alien planets thus far but I am still trying to find a bug. I thought the nebulae star history was great. Here is a picture of my findings.

Some really feature rich options are available and I have yet to explore them all. My concerns are that there is too much information being provided here but it seems the information is limited both in terms of recent data and personal data. As long as GE maintains this approach I do not believe there will be any privacy issues. After looking for the flight tracking option I had to install an add on of the kml plugin. I had to do a little navigation in order to find this feature. But there is an assortment of add-ons if you do a quick search. I am not sure if google themselves provides these plugins or if they come from 3rd parties. These could provide complication and possible software glitches in the future. Overall I was impressed with the array of features GE has to offer. I would probably of hesitated to explore them anytime soon up until now.