For those that don't want to use a vent mount, here are a couple other options for dash mounting:
Amazon.com: GlareStomper 320 Sun Shade Visor for 4.3" 4.7" and 5.0" GPS Screens: GPS & Navigation
- I used this sunshade for a while. It kept the phone a little cool, but not quite enough to prevent the phone from getting too hot on sunny days
- I could see this coming in handy for people that don't want to put their phone on the dash, windshield, or vent
Amazon.com: ME-USDM: i.Trek Universal Dashboard Mount with built-in holder for Garmin TomTom Magellan iPhone 3/4/5 HTC Samsung Motorola LG Google Android Amazon Kindle: GPS & Navigation
- I used an Arkon friction mount for a long time, but if I had found this one first, I probably would've gone with it instead. I purchased one, in case the vent mount didn't work right, but it's an option nontheless.