I also had to exchange my Note this week, after about 10 days of use. The phone was in the car holder and it rebooted. It then started boot looping where it would display the Samsung splash logo, and then reboot. It would not go into Recovery, though would go into Download mode. AT&T tried to reset it for 20 minutes and then gave up and gave me a new phone.
Phone: HTC One
ROM: Android Revolution HD 3.x Google Edition
Tablet: Nexus 10
ROM: Stock 4.3
Device History: HTC 8125, HTC Tilt, iPhone 3Gs, Samsung Captivate, Nexus One, HTC Inspire 4G, Samsung Galaxy Note, Nexus 4