Speed 2 for iPad is a new iPad app that converts your iPad into a speedometer while you drive. It features a gorgeous UI that integrates with Google Maps and will make you want to install your iPad directly into your dash.
Speed 2 has 4 main elements: the maps which take up the top third of the screen, and the compass, speedometer, and odometer in the bottom third of the screen. This area is like your dash. On the speedometer, you'll see a red marker that can be moved around. If you exceed the speed marked, the app will emit an alarm sound to alert that you're going too fast.
If you swipe your finger up the dash, it will slide up to reveal some options. Under the compass, you can select true or magnetic north. Under the speedometer, you can select an analog or digital display and enable/disable the speed limiter. Lastly, from this menu you can reset the trip or total of your odometer and select if you want to allow the app to track in the background.
Speed 2 require GPS as this is how it determines how fast you are traveling, so it's only compatible with 3G and LTE iPads. You also must have your 3G or LTE enabled in order for Speed 2 to work. This also means that Speed's performance is dependent on the strength of your connection. On Verizon LTE, Speed 2 worked perfectly for me.
Combined with an iPad car mount, Speed 2 will be a great speedometer for your car. The UI is gorgeous and being able to view Google Maps at the same time is awesome. It's a shame that you can't retrieve directions to a destination, but Speed 2 can pair nicely with a turn-by-turn navigation app running in the background.
Now excuse me while I hunt for the best iPad car mount...