Mockups are just an abstraction of the real thing. There are lots of issues with this mockup that wouldn't translate well when it gets built. Example: the sear

Mockups are just an abstraction of the real thing. There are lots of issues with this mockup that wouldn't translate well when it gets built. Example: the search "box" running directly into the pill buttons. It's a decent mashup of Messages UI with Adium functionality, but that doesn't necessarily make it better.