My first impressions:
Whoever packed my system is a smoker. I was able to smell it and it was quite strong. I suspect this was packed by Craig himself.
I received my OpenPandora unit last night, a few scant hours before I had to head into work. I was able to take it with me, but before I did that, I tried to setup wi-fi at home and an SDHC card to get me going. At first I was having issues, but I set my router to automatically set the rate limit and everything appears to work quite well now. This was a setting with router that I should not have touched in the first place.
Other minor issues really was that I didn't know how to setup the SD card and I was not able to pull the stylus out. In an unrelated note, apparently none of my built in card readers can read SDHC cards, but USB card reader saved the day. skeezix helped me out on IRC regarding creating pandora/menu and pandora/apps directories and Gryflhase suggested that I use the end of a pen to "pop" the stylus off.
Overall, the unit is quite hefty, it feels almost as heavy as my netbook. It's also quite thick, but that's no problem for my coat. I noticed some edges that are not very cleanly cut, but that's very minor nitpicking. Overall the unit is very solid and quite nice to hold.
Screen:
Nice, bright and responsive!
D-pad:
At first I thought it might be too small, but after using it for a bit, I think it's one of my favorite d-pads. Pulled off fireballs and dragon punches pretty easily in Street Fighter games.
Keyboard:
Very glossy, quite solid, and doesn't feel gummy at all. Takes a whee bit getting used to where some of the keys are, but that's every device.
Nubs:
Very smooth, but besides using it in XFCE, I did not use it much yet.
L-R triggers:
Very clicky and responsive. At first I kept pressing the case when pressing R, but I am getting used to it.
ABYX buttons:
Feels great.
XFCE4:
I think overall the software (XFCE4) is very nicely laid out. Quite a lot of thought had been put into customizing it and it shows. I think a lot of the settings are quite sane.
MiniMenu:
I love the way it looks, feels like I've been looking for something like this all my life for launch apps, but I haven't yet used it extensively. Was also chatting with skeezix when I tried it out.
Pickle launcher:
Nicely done! Very sensible and easy to use.
Bug and minor complaint:
Why does midori crash so often and how come it doesn't load
http://apps.openpandora.org/ properly being that it's the default included browser?
Also, it won't let me save to my SDHC card, says it can't find the path or something. No biggy, I can definitely work around that.