Just to chime in, I've been using rubymotion for a couple weeks and used RMQ for some toy apps. I now have switched to Promotion. I may come back to RMQ but my goal is the quickest path to an MVP on iOS. It seems Promotion is a bit easier (as I have no prior iOS experience) but I could be wrong.
I think RMQ seemed really great, and I do think I could get where I'm going using it (but maybe a little slower). If I recall, working with tableviews is where I switched to Promotion. Tableviews are dead simple for Promotion. I saw your video on the more complex view (the name is escaping me at the moment) but I am generally going to be using the tableview.
At the end of the day, none of the offerings have solid documentation (with examples!). For my needs, Promotion (so far) happened to have the documentation and examples in the places I needed it. I would definitely switch to a framework if it had easier to use docs and examples, but that's just me. I'm not a typical developer (computational physicist and musician turned web/mobile dev).