I am embarrassed to say I am strangely intolerant about two things (but only two :-)), both in the PDA realm. The first, is people referring to any and every Palm Computer as a PalmPilot. As Wikipedia says,"The first two generations of PDAs from Palm were referred to as "PalmPilots". Due to a trademark infringement lawsuit brought by the Pilot Pen Corporation, since 1998..." Back then, US Robotics manufactured the PalmPilot, and I had one. Probably, no one has a PalmPilot today, yet people still call it that.
And on the Apple discussion groups and elsewhere, people will talk about there iTouch when they mean iPod touch. Yes, even spelled with a lower-case "t." You have an iTouch if you have an this iPod touch knock-off.