That's about right, although Italy will have two entry points. One from the south, from Greece and the other one will go through Slovenia to northern Italy.
It won't be just Russian gas, it will be also gas from several countries around Caspian Lake. I don't expect project to be finished before 2012-13 and then it'll take several years to build it. I think it will be finished in the latter part of the next decade, 2015-2020, somewhere in that period.
It isn't overly important how many countries will there be connected in the South Stream. Balkan countries are small in population and their economies are also small, they're not going to consume much gas. Even if you put Croatia, Bosnia, Macedonia, whatever-Balkan-country it won't change things so much. Germany consumes more gas than all Balkan countries put together. The only large consumer would be Italy, which also import gas from other sources...
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