Misleading statement. They did not "increase" the price so to speak. The platform came out of beta and into normal pricing mode. The low prices were introductory prices to get developers to use the platform.

The price is higher than it was before, correct? In that case, it was increased.

Increased back to the original price. Yes. It was not higher than the original price and the prices have gone down a little since. Nice play on words there. :)

You are playing with words. The price of using the service increased dramatically.

even if they hadn't changed their prices to reflect their beta status, it doesn't mean their prices won't change to one which you no longer like. Having an open source alternative means you are not locked into the vendor, and they cannot charge you an exorbitant price.

appscale?

Also known as Bait and Switch.