Yeah, my Samsung Galaxy S uses a single core CPU if you count that as a PC.
+1
I stopped using single core on desktops a long time ago though
Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
Yeah, my Samsung Galaxy S uses a single core CPU if you count that as a PC.