The local KMart in Columbus, OH had 5 or so in stock this afternoon, so I picked one up since the price is low, and it's returnable. My feelings are mixed.
Pros:
I like the size, much more portable than a 10" but big enough to be a reasonable e-book reader, media player, and web browser. It does include the Marketplace, which worked fine for the few free apps I downloaded. Wifi worked well, I was able to get a steady connection from the parking lot of a couple of different "free wifi" coffee shops immediately after leaving Kmart. I didn't watch any video except for Youtube, which worked and looked fine. The screen is very reflective, but I had little problem reading an e-book with the Kindle app outdoors.
Cons:
Having used an iPhone for the past few years, this screen is going to require some major adjustments to get used to. Typing requires a much harder keypress, no auto-correct that I found, which led to lots of typos. The screen is also a finger print magnet, in the 15 minutes I used it I must've wiped it clear at least 3 times. The navigation buttons on the back are a pain to use, might eventually learn to use them by feel, but they're very small and close together. On the side where MicroSD and USB ports are, there is a label for HDMI, but no HDMI port. Not a big deal, but confusing. The back casing is plastic, and feels somewhat cheap, but also makes it feel very light. Navigation with Google Maps was also confusing. When I opened Maps while connected to Wifi, it immediately located me on the map, which led me to believe that it had a GPS chipset (I didn't think it did going in). However, driving around never changed my position on the map.
Overall, I'm not completely sold on it, but for $150 I'll give it a chance. There are a ton more features I want to test and provide some feedback on, still trying to learn my way around the Android OS. I also have some travel coming up and plan to take this instead of a full laptop, to give it a real usability test.