Thanks for suggestions guys.
I should mention why I'm looking for this.
I'm going to GDC next week and I want to be able to show people art and code stuff that I've done.
So I picked up a Windows tablet and I'm in the process of transferring files onto it.
Unity applications seem to run fine, so that's all good.
But I'm looking for a simple "portfolio" application that can display pixel art cleanly, and that works well with touch.
I want to potentially lay it down on a table and have people finger easily thru images at their own pace.
Or hold the device backwards, facing others, and easily control it myself by flicking to the next photo, without having to really see the screen clearly.
At this point I've tried:
Irfanview - decent features but not very tablet friendly.
XnviewMP - has NN scaling and a decent full screen slideshow. close to what I'm looking for but doesn't seem to be touch friendly.
Found a post on their forums that says it supports gestures but haven't been able to find any information on how to enable it. Do you know anything about this Atnas?
Xnview - seems like a simpler version of Xnview.
Nexus Image - does not support full screen, touch image flipping etc.
Picasa - touch friendly, but cannot find a way to enable NN scaling. Also online, and I would prefer to have an offline viewer. Altho there is probably a way to download images and use it as an offline viewer.
Blogger -> just in a browser - works ok for scrolling past multiple images but does not have NN scaling. The image preview mode does not work well with tablets, displays in the wrong place and can not move it around. Also online and I would prefer and offline viewer.
Windows Photo - touch friendly, but no scaling options.
I have a feeling that If I just scale up my art to fit a decent viewing size, people wont really notice the bilinear filtering or care much.
But that will remove the ability to zoom out and be able to see the image at x1.
Of course pixel art at x1 on a tablet is fairly small, so maybe that doesn't matter.
And I also tend to draw rather large for pixel art sometimes, and those images seem to work fine.
It might just be the best choice to just take each image and scale them to an individual nice viewing size that works well.