So I dun bad and ordered the wrong Kiwi Wifi for my car, so this BRAND NEW OBDII reader is up for sale. I paid $240 to get it shipped here from the U.S. looking for $200.
It plugs into your OBDII port (post '96 model year cars) and reads all data that goes to your ECU. Then with an additional iPhone app (something like Rev costs about $42) you can get all this data in the form of gauges up on your iPhone!
WARNING! Don't buy this if you want to piggy-back the additional sensor modules to be able to read additional data that does not go through the ECU. That's what I did and why this is now up for sale. I've already ordered the other +iMFD version and am just hoping to get some of my money back on this one.
I have plugged it into my car to make sure it all works and I have to say, the thing is awesome! Happy to let you have a go before you decide to purchase - we can plug it into your car and use my iPhone with Rev so you can see how it works.
Link to it here
Link to iPhone app here (there are others, but this looks like the best)
Link to lists of standard ECU data that you will be able to read for your car here Note: that is a Subaru link, you might have to search a bit for other makes.
Feel free to PM if you're interested