There's a new white paper on FireMonkey available from the RAD in Action - FireMonkey page. You can download the whitepaper from http://forms.embarcadero.com/forms/AMUSCA1110FireMonkey-MarcoCantuWhitepaper
Here's an abstract:
Discover FireMonkey, The Next Generation Business Application Platform by Marco Cantù
In this whitepaper, Delphi Expert Marco Cantù introduces FireMonkey, the next generation business application platform and guides you through the key features while building simple real-world applications for Windows, Mac, and iOS. This paper is meant for developers already familiar with Delphi or C++Builder, and will help you get started and understand the role of the various technologies that are part of FireMonkey, while building business applications. You will see how you can connect to data from a database, a middle-tier DataSnap server (also built in Delphi), or a cloud-hosted database.