Thread:Project:Support desk/MediaWiki showing wrong logo - Hacked?

Posted here earlier today. In the process of starting a new Wiki at proutypedia.com. I noticed a few minutes ago that on the iPad using three different browsers, the Wikipedia logo is now showing in the upper left. Wasn't there before -- in fact, the Wikipedia logo was never uploaded to the server for use. Cleared the cache, tried again: same Wikipedia logo. Yet, on my home PC, on two different browsers, the proper logo shows up correctly.

Is this some strange iOS bug? Has the wiki been hacked? Any suggestions are welcome.