Among the many CodeGear blogs about Tiburon, one of the most interesting new areas seems to be the new DataSnap (or dbExpress remoting) architecture. DataSnap used to be called MIDAS in the early days...

Steve Shaughnessy blogged about it in Tiburon DataSnap enhancements and Andreano Lanusse covered it as well in Tiburon - more about DataSnap.

Very, very interesting stuff. This new remoting architecture will not be tied to COM any more (like MIDAS / DataSnap was, even if only internally). I also like the fact is is way more open (in terms of platforms and languages on the client side). And the flexibility seems much greater...