One of the things about the iPhone that is annoying is that you can't change batteries. So what do you do when you're in the field and run out of charge? That has happened to me a couple of times, and led me to search for a battery backup device, and I found one.
It carries enough charge for a few hours and can extend your iPhone's day by recharging it on the go. First of all you charge the device through a USB cable (pictured). The you disconnect the USB cable and just carry it around in your car/briefcase or whatever suits until needed.
When the day comes that your iPhone battery dies and you're nowhere near power, you plug this battery/charger device into the normal charging slot on the iPhone, and in a minute or so you are able to start using your phone while it is charging. Very handy and less that $14 shipped from Adelaide.
You can buy it from Technology Down Under who stock a range of useful iPhone accessories, and who I've found very reliable.
Here's their website: http://www.technologydownunder.com.au/
Its been in the news lately that smartphone pictures contain accurate GPS location data (geotags) which if posted online could cause a danger to you or you family. Here are the facts as I know then, and I have just done a test to verify them.
I took a picture with my iPhone today, and copied it to my desktop. I also emailed it to the same PC. On both occasions the geotags were present as you can see in the picture below. There has been major concerns about posting online to social media, so I posted the same picture to Facebook, and then downloaded it and looked at the details.
The geotag, (i.e. the location data) was gone, thus rendering the photo safe. I don't know if this the same for other networks, but you can check your own photos by right clicking on them and selecting properties/details. The GPS data will be present near the bottom as per the photo below left.
The safest option, and the one you should use mostly, is to turn geotagging off. On the iPhone this is done by going into your settings/location services and turning it off on the camera function. No other GPS services will be affected. Android users will need to check with their suppliers. The photo below on the right shows how it is done on the iPhone.
