While looking at my profile on my iPhone with either Mobile Safari or Chrome for iOS my list of accounts is rendered thusly:
These icons are rather mixed up, don't you think? None of the icons used match the site they are displayed with; the only thing that is consistent is that the Super User Meta icon for Meta Stack Overflow at least matches the Super User icon used with Stack Overflow. This is probably a CSS sprite offset error.
This happens on all sites, and on other profiles besides mine. It is also platform and browser independent; Generic reproduced this on Android.
Update: Reproduced on Chrome on Mac (desktop browser), by clicking on the 'mobile' link in the footer (don't forget to switch back to 'full site'). This is indeed a sprite offset problem; the CSS sprites look fine, the offsets are off by 4 icons: