Ha. That basically means they are selling nothing. You can get into the top 100 iPhone Games/Educational section with about 20 downloads in a day. But these are their peak figures. Their boast about being in the top 400 for 2/3 of the time is laughable. That basically means they sold 1 per day. As for the other countries, that's even less meaningful. You can shoot to the top of that category with 5 downloads.
Basically, this was one unprofitable app on the iPhone. Making 5 times more on WP isn't so impressive.
Actually what you're saying is even worse. You're basically saying that almost no one makes money on the iPhone. Unless you're Rovio or PopCap -- you're selling nothing.
And given the fact that I already know a few independent WP7 devs who can make a living purely from WP7 apps makes me wonder if the iPhone app store really is the iPhone lottery for developers. This can end up actually turning into a really bad story for iPhone developers.
No. I'm saying the Games/Educational category is very small and takes very few sales to be in the top 100 and almost nothing to be in the top 400.
What I'm really saying (in my other comment) is that this was a wholly unremarkable app with very little to differentiate it from all the other apps out there. This article is just cynical linkbait to try to squeeze out some extra sales.
You can get away with selling unremarkable software in a new market. As soon as news of a gold rush for WP7 emerges then it will be just as tough as the iPhone market in no time.
Basically, this was one unprofitable app on the iPhone. Making 5 times more on WP isn't so impressive.