You know that Kolor is working together with Pierre E. Gougelet, the author of XNview suite.
See this blog post to learn about it : http://www.kolor.com/blog-en/2013/01/25/do-you-know-xnview-the-best-free-image-viewer-according-to-clubic/
Pierre is doing great work on tablets with several tools already available. He's having some questions about tablet use in photography fields.
Here there are :
* Do you use a tablet (iPad or Android) to tag/sort/show exif their images files ?
* Which software do you use ?
* Which features are needed ?
You can answer to him directly contact at xnview.com
I'm sure he is preparing some great tool that we could all use to simplify our numerical life.
So take some time to answer these questions either here or through email.