[nkohari]

So you're saying that, until I have the time to invest in my own branding, I can just use the Coke logo instead?

[shpxnvz]

No, he's saying you can imitate a design that is not protected by trademark; quite unlike the Coke logo.

They do declare copyright on the design, but that doesn't protect against designs that are merely similar.

[angusdavis]

Um, it's called a "design pattern" for a reason.

For more interesting discussions about where to draw the line on imitating others, you may want to check out a little company called Zynga.