Over the past six months, EA Mobile has booked $157 million in sales.

That's up 22 percent compared to the same period 12 months ago.

Pretty good going, but not unexpected given that it's added the revenue from PopCap.

He shoots, he scores

But what's this we read in the small print of its financials?

"In November, FIFA World Class Soccer launched on the GREE network in Japan and became the top-ranking third party title on that system.

"It had a million dollar day last week, and has racked up $30 million in just five months."

Putting that into context, this means that one game (FIFA World Class Soccer) in one country (Japan), accounted for over 19 percent of EA Mobile's entire revenue.

On one hand, it's a massive positive for the company, especially if the game can sustain its revenue to account for, say $50 million over a year.

But, on the other, if you remove that game/revenue from EA Mobile, its annual sales would actually have declined in FY12, despite adding PopCap's mobile revenue to its accounts.

[source: EA (PDF)]