Does Linux Matter?
I'm personally going to switch my current server from Windows to Linux, and save quite some money in the process, but this is what other developers told us: https://community.embarcadero.com/blogs/entry/why-is-delphi-for-linux-important
Getting Ready
In case you want to get back to Linux and get ready, here are a few resources:
Free O'Reilly Linux Survival book: http://www.oreilly.com/programming/free/ten-steps-to-linux-survival.csp
Installing and configuring Ubuntu for Delphi development (by Pawel):
https://community.embarcadero.com/blogs/entry/installing-ubuntu-16-04-on-vmware-for-delphi-dev
Technical Details
I've done three blog posts with technical information about Delphi Linux compiler, RTL, database access, and web technologies:
http://blog.marcocantu.com/blog/2017-february-delphi-linux-compiler.html
http://blog.marcocantu.com/blog/2017-march-delphi-linux-rtl-units.html
http://blog.marcocantu.com/blog/2017-march-delphi-linux-database-web.html
More information can be found watching the Linux Boot Camp replay:
https://community.embarcadero.com/article/16483-delphi-for-linux-boot-camp-replay
A Great Video
And finally Jim created a great "Get ready" video, available on YouTube and below: