New version is up now, includes source code as well if you're so inclined to look at or tinker with such things. Has VDP import, character swap & replace, and some significant bug fixes. Oh, and an About dialog that tells you what version it is (thanks for the suggestion retroclouds!).
As for the new items on the wish list, some of it sounds more doable than others. The hardest one, at least using built-in Java methods, is undo, but that's also the most useful. I'd rather like to have it in there myself. Good idea about doing a memory snapshot retroclouds, I'll look into strategies like that instead of the native methods. The trickiest part will be dealing with destructive edits (ones that are inherently difficult or even impossible to reverse).
Anyway, let me know what you all think of the new version, and I hope you find it useful!