UPDATE: Icahn Makes $1.91B Bid For Mentor Graphics

NEW YORK (AP) -- Activist investor Carl Icahn has offered to buy software maker Mentor Graphics (MENT) for $17 per share in cash, or about $1.9 billion, according to a company regulatory filing on Tuesday. Icahn owns 15.7% of Motricity (MOTR). Let's see how MOTR plays out.