The article just came out.
"After looking at a list of 102 popular apps on Android and iOS, we found that only 34 percent of the apps had BlackBerry 10 versions or equivalents, while 63 percent had Windows Phone 8 versions or equivalents"
Yes. The developers of the other apps are working hard to get approval on BB10. News is there will be delay on approving new apps because too many apps are waiting to be BB10 certified.