Until Sunrise actually puts it up on their website as something official, it's questionable. Why he has a number of them, I do not know. There isn't even official packaging for the Impressive Edition at all, no box, no labeling, nothing. Sunrise sent me a demo one that came in the original Xcape box. There are no markings to indicate that it is anything other than the original Xcape other than Sunrise telling me it's the Impressive Edition (as opposed to v1, v2, Xcite, or whatever). This is a big indicator that this really isn't an official product yet. As well, I find it very odd that Sunrise would allow sale of a product that is unknown to the public. You may buy one, but you have no clue what you're actually getting. It could be the v1 for all you know. You can't tell, and Sunrise hasn't done anything to differentiate it with the plug versus the original. Well, they have a little bit but not against the v2, Xcite, etc. v2 got the new look, but everything after that shares the exact same look meaning you don't know what you got or what people are selling if they do buy and then later sell whatever version they may have. The only thing that could be unique to the Impressive Edition is the case. It has a different logo than what I see from older version pics. However, I have no clue if this was updated/changed over time.
I'm not trying to say don't buy it, but I might contact Sunrise first and inquire at the very least. Even if it is officially out, the lack of labeling will be a big issue down the road when people are selling several versions that all look the same. Sunrise needs to silkscreen or etch some unique markings on these things to differentiate the products. I don't really see a product as consumer ready till that happens. It should have labeling, its own box, etc. upon official release. Then again, I've seen ClieOS comment that Sunrise is kind of bad about the whole labeling thing as in they don't really try to make an effort to differentiate the products as well as some companies do. I just see a big issue with verification of what a product is in the first place unless it came directly from Sunrise and they told you what you got.