I'm working on an Android app (A game, I can't release details yet for legal reasons)..
I did professional Java development back in the day, but I had not done much with it in years, I miss a lot about C# and C++ when coding in Java, but I cannot say the converse is true. (ok, inner classes are a neat trick ,but like virtual functions I wish they weren't the default behavior)
So I made a test FB account, with an email address I've had forever but never use. FB still suggested my wife and a few coworkers as "people you may know". (Freaky!) I hard time finding myself though.(note to self, there are a boatload of <me>'s out there). I had to trace through the friends lists of the suggested friends. Funny thing is that it didn't list me as friends with some people that are on my friends list. I wonder why that is.