I'm surprised this is not getting more discussion. Are these apps going to be iOS-based or genuine OS X applications? (I think the latter.)

In the days when I used Windows, I naturally only downloaded "official" apps and avoided any sort of non-famous/non-open source shareware for years -- the spyware/toolbars/etc. are just too rampant. I have an Android phone that I use for development, and there, I too am incredibly cautious about what I download. The "open" Android platform actually prevents me from discovering potentially amazing indie software because, well, I just can't trust it.