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I don't recall the 37signals people ever complaining. There are oodles of Basecamp competitors out there, and I honestly don't think they mind the competition/copycats.

They are really very humble about competition, in general.

[jraines]

Here's the complaining and their basically solid rationalization for it.

http://www.37signals.com/svn/posts/575-but-theres-only-so-ma...

Although I'd still come back and say there's only so many ways to do chat . . .

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That's not complaining about competition, that's complaining about theft of design.

I really don't think they care if someone copies the functionality of one of their products, but I think they care when someone copies their words and design (CSS and images, in this case). Two completely different things.

[ajkirwin]

I looked at the differences between the two and.. it's a layout and styling that I see everywhere.