America Invents Act (AIA)

On 16 September 2011 President Obama was “pleased to sign the America Invents Act”, a “much-needed reform.” Supporters also see the AIA as reducing the patent litigation cost burden on U.S. businesses ($500 billion since 1990 per a Boston University survey), as creating as many as 200,000 new jobs, and as streamlining the patent application process. My question is, specifically how? Critics feel free to weigh in.