4 ms·... but not when you have deliciously usable and tactile "cards". :-)by jdub 15y ago... but not when you have deliciously usable and tactile "cards". :-)jonah 15y agoRight. And by promoting each "tab" to its own "card" at the same level as each other "app" you benefit from that.jdub 15y agoPlus in webOS 2.x, stacks reduce the cognitive load of having too many (seemingly) unrelated cards.