In reply to n-stacey:
> I have recently acquired a Sony NEX 7 and want to link it to my ipad (if possible).
> Is there a link lead/cable (Sony or other) and what app would be best to down load for image management?
Don't know about the Sony, but you can get card readers that you can plug into an iPad though not always directly depending on models, etc, but sometimes via 3rd party connectors. Apple do do a sd reader on a lightening connector so depends on what iPad you have then though you can get lightening to 30 pin connectors also!
What are you really wanting to do though as this may suggest an appropriate setup that someone can help out on? Is this short term backup, long term storage/catalogue them, or is it manipulating/correcting images? Are you just wanting to view onsite a larger version of the photo so you can delete/redo, etc? Or something else?
You probably saw that Only a hill mentioned iOS Lightroom on another thread -
http://www.ukclimbing.com/forums/t.php?n=655645&v=1#x8465884 . Don't know anything about the iOS version myself, but the desktop version is generally accepted as one of the best all round packages for photo management; I do all my photo management on PC.