(Patent-watcher Florian Mueller is expecting that the federal lawsuit is stayed for the duration of the corresponding ITC investigation .) The Barnes & Noble response to Microsoft's complaint, dated April 25, makes some interesting counter-arguments regarding Microsoft's plans to combat Android, going so far as to bring antitrust allegations involving Nokia, Microsoft's newest mobile phone partner, into it. "On information and belief, as part of Microsoft's recently announced agreement with Nokia to replace Nokia's Symbian operating system with Microsoft's own mobile device operating system, Microsoft and Nokia discussed and apparently agreed upon a strategy for coordinated offensive use of their patents," says the B&N filing.