Research in Motion (RIM) posted quarterly revenue of $4.2 billion, down 19% from $5.2 billion in the previous quarter and down 25% from $5.6 billion in the same quarter of fiscal 2011. There was a net loss for the quarter of $125 million, or $0.24 per share diluted, compared with GAAP net income of $265 million, or $0.51 per share diluted, in the prior quarter and GAAP net income of $934 million, or $1.78 per share diluted, in the same quarter of fiscal 2011. The company named Thorsten Heins as President and Chief Executive Officer. Mr. Heins...