Hmmm, mandating a magic SDK to grab some ad revenue looks like an excellent opportunity to spread some spyware, fast. Even if not now, the temptation is guaranteed to prove too much.
Not a good move, and there is every chance that developers using this may be thrown out of the App Store for it and to be honest, I would be totally OK with that.
It's a bit like <a href="https://crosstec.org/en/downloads/analyticsanyway-for-joomla.html>this reprehensible stuff</a> which seeks to aimed at absolutely disrespecting people's wish (and right) for privacy.