We usually don't disclose figures since this is a closed business, with a single owner.
I am actually about to run the figures for the 2007-2010 period starting next week.
These are things that are always the last on my list.
I am always busy with making games, doing tech support, etc
From the top of my head, it's six figures in US dollars, after taxes for 2010.
Units sold are somewhere around 50.000 (this is a very raw figure) and the profit margins are highly variable, depending on the channel sold (anywhere between $1 and $45).
I own the oldest game development studio established in my country, and currently the best in terms of sales ranking, market value and profits.
Now I am off to finish some stuff on Duality