That's a hell of a lot more difficult than most US employers are used to. A lot of companies here offer what is called "at will" employment, which basically rounds down to "we can fire you whenever, you can leave whenever."
See how that wouldn't necessarily align well with the Brazilian way of doing things?
You can, certainly create an AMI preconfigured with all of your libraries, packages and services ready to go, but the issues arise over time with package updates, system updates, one-off configuration changes .. the list goes on.
The actual configuration of your system will drift further and further away from that templated AMI, leaving you to constantly have to build a new template every time you deploy a new machine, or manually make all of those differential changes to your new system.
Config management can be tailored to rapidly update the configurations of certain classes of systems at a greater interval than the constant cycle of blowing away machines, updating templates, redeploying, etc , etc.
Is that really a symptom of Facebook deliberately trying to wall its users in, or just that the the majority of its userbase really would get phished/infected/anally-probed without the warnings?
I hope they carry over the WunderMap. Of all the radars I've browsed, theirs is definitely the quickest, and has all sorts of layers to customize it with. (As well as a multitude of station readings.)
It looks like they'll be keeping the Wunderground site as-is, but I've learned from past experiences that those kinds of statements don't hold up too well down the road ..
I don't see it as giving up, but rather tighter integration. It's easier to just check a box by your status saying "yeah, you can let people know I'm here," instead of the old option where it was a completely separate input.