The power of simplicity! Kudos to the guys at Joyent.com. They are using simple imagery (like the image above) to accompany a simple narrative so you can simply understand what they do. Of course this fits into their product strategy,
"Joyent delivers simple, powerful, web-based software for small teams."
But I think this also speaks to a bigger marketing issue. Why do we as marketers often think simple=unsophisticated or simple means the product will be perceived as less valuable? We as in-the-trenches marketers fight this battle every day. We tend to oversell all of the features and benefits, thinking if we make it seem complicated enough the prospect will come to their senses and realize we know something they don't and they better jump on the bandwagon before they're left behind.
The simple fact, though, is people buy what they understand. Nobody wants to feel inadequate or looked upon as really stupid for asking that question. When we as humans more or less "get it", we're much more apt to ask questions about the finer details. Thus, as marketers we have created the beginnings of a conversation with our prospects. And what better goal to have as marketers?