So with all the talk of unreliable SD cards I was thinking I should get some mobile back up and something that preferably worked with an ipad. Well I didn't find anything ideal but I did come across a couple of interesting products or should I say toys... First the Hyperdrive Colorspace UDMA made by the makers of the excellent Hyperjuice 2 100 ( every Mac lover should have one - look it up). HyperDrive COLORSPACE UDMA2 So what is it? Well it is a portable hard disk (up to 1 TB) with its on file management system, 3.2 inch screen to view files and photos, CF and SD card reader, rechargeable battery (2 hour life), built in wifi (ideal for connection to ipad or smartphone) or USB connection to a computer. So really it does have everything you could ask for from a portable hard disk and a price to match (US249 excl hard disk). I have to say this product gets some excellent write ups but it didn't really do a whole lot for me. The 3 inch screen was sort of overkill - it is no more than I have on my camera and far less than on my ipad. It is also quite big and then there is the need to carry another power adapter. The other product I liked rather more although its use for photography is rather debatable. AirStash®: wireless flash drive + pocket media server + SD adapter for iPad, iPhone, Kindle Fire, and more So what is it? Well it's really a glorified thumb drive that takes any SD card (either Sdhc or sdxc) as storage medium. It has a built in rechargeable battery (7 hours) and wifi. It costs US$126 for a unit plus an 8GB card. It is designed to accept cards up to 2 TB although the largest SD card you can buy is 256 GB. It really can't do that much for you photography wise. It will essentially turn every SD card you own into a wifi card. You simply insert it into the air stash and then you can browse the card and download your photos on your smartphone or ipad. I actually like the idea of getting a 128 GB card and filling it with movies and TV series. I can then either play them via wifi on my ipad or put it in the USB of my media player. The airstash is tiny and is charged through its USB port. Soon I suspect there will be larger and cheaper cards.