Apple Mac PRO – OsX 10.9.2 and browser Safari 7.0.2
Yes, normally you don’t see the icons on iPhone when the menu is folded, but I tried to unhide it (in editor) because I wanted to have the social networks icons on the phone devices, too. But it looked really bad and nobody would know what the icons mean, so I hid them again.
Old iPads no, but maybe new iPads with retina? But it was only my guess..