Re: Why should there be any limit ?
"However, for app developers, there is another route: Require the user to buy a license key. For those few apps which need it, particularly business apps, it wouldn't be enough of a hassle to put users off, and they could do volume licensing deals etc. Also, Google wouldn't be taking their cut."
Unless they use the in-app purchase system, and devs may be required to employ it as a security measure, much as eBay sellers are strongly encouraged to employ PayPal since other routes risk fraud.