No, it doesn’t prevent a proprietary system from being built, but it does provide the end users/customers a choice to support products that uses an open system.
The first real contender to the ESP8266 is set to release September 1st: the successor to the ESP8266, the ESP32 - now with dual Tensilica cores (and a bunch of other stuff).
I agree. Most mobile games I've downloaded prioritize ads views/in app purchases over making a 'hardcore' game. There are a few exceptions, such as Vainglory, but the vast majority are the equivalent of the super ball vending machine at the grocery store.
Ugh. I had a friend who played an incremental clicker game. He urged me to download it on my tablet. It didn't offer anything interesting over any other incremental clicker game, but every so often, a giant ad would display in the middle of the screen.
You'd be surprised at how many touch events you can register before your device has the ability to switch to your browser. After I closed all 10 or so tabs, I uninstalled it immediately.