I am as nitpicky about user interface as I am about user experience. There are some apps which, even though they offer a great service, I just never use because I don’t like to look at them. And on the other side you have those apps which look cute but are not very useful.
Instacast, however, is of my favorite breed of apps: one with pitch-perfect design and that does one thing and does it very well.
I’m a huge fan of this app, for the very reasons Shawn outlines in his post.