My cellphone is a cheap prepaid job that I only use for emergencies (and which normally stays locked in my car's glovebox). For normal everyday phone use, I have a landline.
Verizon. No fancy i-anything, just a regular old cell phone. On the plus side, I can flip it open and pretend its a communicator.
I have a Kyocera Laylo. It is not a very well known brand, I think only MetroPCS carries them. But it is small and cute so I like it.
Since October 2010, my main phone's been an Nokia 5230, I went for a limited edition White/Silver one. I love this phone.
I have a Virgin Mobile Audiovox phone that is extremely no-frills. Monochromatic display, no browse capability. I'm not even sure if it can do custom ringtones.
Personally I'd have a really hard time going back to a regular cell phone now that I've had a smartphone for a while, it's just so useful to have it on the go. Nexus One Video