Yeah that iOS update ought to be helpful for you, for sure!
What’s your hangup with email to task? Is it the potential exit from your current workflow, security issues?
I’ve been doing it for a while now and it works insanely well for me. I live online, though, and much of my work is research and conversation based, so it just makes sense for me. I go with Producteev because of the pretty interface and great added features for organization, and because I can work with it and never leave my email at all, if I want to.