Thanks for the details. This is getting a bit off-topic, but can you describe how a foreigner should go about finding a place to live in Central America? Did you just fly there and look for "For Rent" signs or did you line something up beforehand?
Thanks for the reality check. I threw this up on a whim after skimming this thread: http://news.ycombinator.com/item?id=1745133. It was fun, regardless, because I suspected I was competing with others to get it done first. I spent about 20 minutes getting it functional and another 15 making it prettier.
I do not dismiss this research: it is amazing. But, I also think you are underestimating the skill and sophistication of RC helicopter hobbyists. There are international competitions involving very complex, but well-defined and precise maneuvers.
For example, there is a maneuver named "chaos" in which the pilot continuously pirouettes while continuously flipping while continuously rotating the axis of the flip while holding the aircraft in a single position a few feet off the ground. It is tremendously difficult to even visualize this fully.
The unsettling fact remains: Facebook is tracking users' activity on third party sites without express permission (though perhaps it's in the TOS; I'm not sure). And evidently, they're somewhat incompetent at hiding that information.
An event that trigged it for me: visiting break.com (after previously logging into facebook) resulted in a Break application being added without consent.
I'd say it's not a reminder for many; it's news. I've always been very careful with my info on Facebook, but I never considered how easily they could invade my privacy when I'm not even on their site.
"... if you go to an application's profile page, you can see a list of your friends who also have that app installed, essentially getting a unintentional peek at their browsing habits."
This creeps me out more than anything else Facebook has done yet.