Hunt ghosts with your iPad and the Mr. Ghost antenna

From PadVance.com:  Hunt ghosts with your iPad and the Mr. Ghost antenna

If you've ever watched a show with the words "Ghost", "Hunt", or "…ers" in the title, chances are good that you know what an Electromagnetic Field (EMF) is and how it relates to the supernatural. A newly funded attachment for your iPad or iPhone will now let you measure these EMFs and go ghost hunting with the help of your favourite iOS device.
The attachment in question is Mr. Ghost, an antenna that plugs into your iPhone or iPad’s headphone jack. Using the antenna along with its free companion app allows you to measure fluctuations in EMF readings and, if the pseudoscience of ghost hunting is to believed, track the activity of spirits, spectres, and other boojums.

It definitely looks like we've got some, uh, frequencies… in this room. Yeah, no doubt about that..

Mr. Ghost is the brainchild of Aaron Rasmussen, who recently turned to Kickstarter to secure a modest funding goal of $7,000 to launch the device. At time of writing, there are currently 13 days left in the drive and Mr. Rasmussen has already raised over $11,000.
While completely safe to use with your iPhone and iPad, the original iPad is apparently not a strong enough medium to interact with the spirit world - Mr. Ghost will only work on an iPad 2 or later.