I've recently gotten into the GTD methodology after hearing David speak at my school. I've been using Things on both my MacBook and iPhone, and it works great. I'm looking to be able to sync notes between my laptop and iPhone though for packing lists, idea lists, etc. that don't fit into the "todo" area. What do you iPhone users use for this?
It's frustrating that the iPhone doesn't sync the Mail.app notes to the Notes app. This would work great for this purpose!