Especially good on the iPad
I had always used this on my iPhone and liked it, though I didnt always know how best to use it, since I did most of my writing on my Mac. Now that I have an iPad, I use it all the time. I do most of my writing on my iPad. I start drafts in Drafts, then send it to Dropbox for final editing in a Dropbox-connected app.
bzigterman about
Drafts: Quick Capture