It's the diplomatic map indeed. Milan has been severly decimated in my game and is down to four provinces. France took Parma (ouch), and Ferrara just inherited Modena (after the screenshot was taken). I was lucky in some alliance casus belli which I used to vassalize Pisa, Siena, Croatia, Ragusa and Aquileia. Urbino has been taken completely peacefully by allying, diplo-vassalizing and finally, diplo-annexing (two attempts).
The Tuscan economy really rocks. The only time I had more money lying around was in a Holland game.
Anyways, look forward to your AAR.
That's awesome! Why did you vassalize and not take the territory? You can't form Italy unless you actually own the provinces, can you? (Might have it changed it in the last beta.)