HUDs for everyone!

I've always kind of though the Heads Up Displays sometimes found on high end cars were pretty neat.  They install in your dashboard and project your speed onto the windshield so you don't have to look down at the speedometer.  By and large, they're just a gimmick, but a pretty cool one.  The whole installing in the dash part can get complicated though.  Additionally, like many older B-body, the digital speedometer in the Impala has a habit of blinking off so you have no idea how fast you're going.  I came across a way to kill two birds with one stone.  I'm actually using my smart phone for something...smart.  I downloaded an app called DigiHUD.  It's basically just a GPS based speedometer, but it has a mirrored display setting.  With the numbers mirrored, and the phone set on the dashboard, it projects correctly up onto the windshield.  It's free to download, and as easy to use as setting your phone on your dash.  No hacking apart the dash, no wiring, nothing.  There is a very slight ghosting of the letters as the light bounces off both the inside and outside of the glass, but it's hardy noticeable(it shows up in the pic MUCH worse than in real life).  It's also got a built in compass, trip and max speed reached readouts, if you're into that kind of thing.  Everyone who likes cars should give this app a try.