No, I think the idea is that there are some full blown apps that seem to serve only to push sales of other apps.

Not a big deal for demo + full version apps, but when you pay full price for an app (or download a free, non-demo app) and keep getting pushed to buy other apps it gets pretty annoying.

Some apps have done it tastefully, like Temple Run. Others like Scramble (and my assumption is all Zynga apps) just make it a drag.