There is a big difference between what each company feels the patents are worth. Motorola wants $4 billion a year for the patents in its portfolio while Microsoft values them at $1.25 million or less. Additionally, Microsoft claims that Google already offered them a worldwide license for the standard rate agreement when the essential patent rules were being formulated. If the court finds that Google did make this offer to Microsoft, Motorola will receive a lot less money than it was hoping to get.
To make sure that this trial doesn't turn into the media circus that the Apple-Samsung patent trial turned into, both sides requested that the courtroom be cleared when financial matters are being discussed, a request denied by the judge. While the judge did say that the public won't be allowed to see evidence related to patent negotiations or financial data, he did note that any testimony will be made in open court meaning that "if a witness discloses pertinent terms, rates or payments, such information will necessarily be made public."