Designers use rounded corners so much today that they're more of an industry standard than a design trend. They're not only found on software user interfaces, but hardware product designs as well. So what is it about rounded corners that make them so popular? Indeed they look appealing, but there's more to it than that.
I know, I know...I should have a business card by now, but it's just so important that, for a business card, details matter.
(via Shawn Blanc)