Here's a chart pretty much guaranteed to get teeth grinding in Cupertino - new data from NPD showing Android extending its lead as America's most popular mobile operating system The consumer research group says that Google's software was installed on 44 percent of mobile handsets sold in Q3, up 11 points since Q2.

While that data may rile up Apple fans, Android's gain seems to primarily fueled by BlackBerry's loss: Research in Motion lost 6 points in the last quarter, falling to 22 percent, while Apple's iOS moved up one point, to 23 percent..