I saw you updated wp file download with a faster preview feature, this is great!
However, I really don't want to sound like a grumpy old man, but that forum is full of request for Thumbnail preview. You said many times it was in the pipeline, but it's not being released.
I really would like to understand, is this that complicated to implement?
It's on my opinion the big missing feature to make your product near perfection. I strongly believe it would boost your sales to implement that.
We bought a license last year to be able to really test the plugin (the demo was not enough). But we won't go into production without thumbnail preview... it's a pity, again it's a fantastic plugin otherwise...