http://www.devia.be has a great first impressions writeup, outlining the simplicity of developing with Delphi XE5 for Android and Mac.
On the Android side of things, I don’t even remember having to do anything special.
In the article, he goes through his thoughts on connectivity with Mac and Android, then goes on to praise the new REST client in Delphi XE5.
Issues are few and far in between, but I have to agree with his view about the F6 command being remapped to the search bar. I really did like that popup.
Check out the article here: Link