It should be easier to write a greater-than-140 character message in Twitter.
Sometimes people have an idea that really can't be expressed in 140 characters, but it's still important. There is an opportunity to smooth out the interface between Twitter and tools for writing longer ideas.
I know a bunch of people have tried to do this, but mostly it's too much work.
Have you seen anyone do this really well?
It's a pretty serious bottleneck and it isn't getting addressed for years.
Worth mentioning so we can look for a way to deal with this.
PS: During the 1-week outage at Scripting News, I was using Facebook to write longer messages. They've mostly scrolled off by now. But I haven't forgotten the ideas.