The Wall Street Journal says that with its $250 million in new funding, social gaming company Zynga could be worth as much as $7 to 9 billion -- that's "billion" with a B. An astounding number for the company behind the extraordinarily popular Facebook game Farmville. Zynga has a number of interests in the iOS space, including a Farmville app as well as the recent purchases of iPhone developers Newtoy and