A very bad name for an app if you're vegan though
Milk (except mothers milk) isn't made for humans and RTM isn't made for gtd.
I've tried RTM but it's very limited for gtd and has to be hacked and gets too cluttered with all those tags, tabs and smart lists, not really designed for gtd.
There are lots of better options, I think even using Evernote would be more convenient. Nirvana2 is a really good option...