ITALY HIGH-SPEED RAIL

I recently got back from Italy, where the only current high-speed
rail line is Florence-Rome. HOWEVER, a fellow passenger informed
me that Rome-Naples was fully-graded and built, needing only catenary,
signals and tracks. Any ideas when this line will be open to service?
The engineer at Florence informed me that top speed Florence-Rome
was about 150 miles per hour.

Have a look at this map for information on Italian high speed rail lines:

http://www.en.tav.it/1/default.asp?id=6 ... odice1=002

I think the top speed on the Rome-Florence line is 250 kph.