Posts TaggedRed Pen
You’ve made a design, and need some quick feedback on it. So, you upload it to CloudApp, share the link on Twitter, and wait for the @replies to come in. At best, you’ll get 140 character replies, letting you know what needs fixed. But good luck figuring out exactly what they’re talking about, since they can’t point to the spot on the design they’re talking about to show you.
There’s dozens of apps for feedback on designs, but most at least require you to make an account and at worst require those giving you feedback to make an account. How about something radically simpler?