[idolaspecus]

> iMessage combines text messages and its own messaging system in a more-or-less opaque way to the end user

I don't really know what to say about it, but I just wanted to point out how we use both "opaque" and "transparent" in the way the author uses "opaque" here. I know this isn't unique (i.e. "I'm up for X" or "I'm down for X") but this particular instance is, for me and by far, the most confusing.