There’s an updated version of ThumbGenie in the wild that sports a new skin designed by Nick Gorsline (aka Gorz). It was the first Flex component skin for Nick and first Illustrator-to-Flex workflow for moi. I think after after the experience we’re both looking forward to some Catalyst.
In addition to the new look, videos are now scaled in the preview window to match the output dimensions. This should make it easier to get a handle on what thumbnails of various sizes will actually look like.