Facebook, 'Angry Birds' top iPhone app downloads for 2010; mobile app revenues to reach $35 billion in 2014;

> Facebook, Angry Birds top iPhone app downloads for 2010.

> IDC: Mobile app revenues to reach $35 billion in 2014.

> Apple approves Google Latitude friend finder app for iPhone.

> Mobile app analytics firm Flurry closes $15 million Series C round.

And finally... How to make your own lard.