Hi there,
I've been through the same process,
Laptop died, so while I was, (am still), waiting for budget to jump into the new iMac, I had no device
In the interim, bought an iPad to tide me over until I get the new iMac
Now, I travel a lot and wondered how well the iPad would hold up compared to the the laptop, I have to say, I doubt I will ever own another laptop!
I do shoot a bunch of images, (fortunately I had them all backed up before the catastrophic failure), wondered how I was going to manage in the field
I always carry a bunch of camera cards so that was not an issue but like to check on the odd image to double check shooting is going OK
I achieved this by purchasing the PhotoRaw app, works a treat and you can resize a raw file to jpeg if you have to send an image by email
The iPad, a computer it aint! You can at least view a few raw images along the way, I'm sure the memory would soon complain if too many large files were uploaded
....Gary