Curves are a pretty versatile and powerful feature of any image processing application when you know how to use them, especially if you want to try and automate parts of your workflow.
When the Eye-Fi works so well with the iPad, why would I want to seemingly make life more complicated for myself by adding more hardware into the mix?
Well, transferring to a Linux based machine like the CubieTruck offers me some advantages over the iPad. Some of them I alluded to in my previous post on this topic, but at the time, my primary thought was really just on-site backup (after making the switch from SanDisk Eye-Fi cards to Eye-Fi Pro X2 cards).
No real interaction, no file serving to viewing devices, just straight up copy the images to the CubieTruck, and then copy it all onto my network when I get back home.