I bought this -- it's great! Two things that I miss most; cut-and-paste, and layers (even just two layers would be a big upgrade..) At present having to drag images into another editing program for final composing. Working on some backgrounds for a jam, and hope to show some results soon.
(Love the printed zine manual, by the way -- nice idea)
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Edit: Never mind. I can import the .gif files into Piskel and do any positioning, layer effects and animation etc. there.