I got the new Nintendo Zone Channel with the latest update. Looks like the nearest Nintendo Zone for me is Best Buy. That is probably the only store I'd even try it at. Not sure if this channel will get much use from me but perhaps some people might find use for it. I also shot a 3D video last night of my friend (since the update now allows to shoot short videos). There wasn't that much light so the video looked pretty bad. I assume that you have to be in sunlight or near a bright indoor light.
Prob the channel I've enjoyed the most so far would be Nintendo Video channel. Even though all the videos are short it is still pretty neat to watch some of the shorts. I noticed that it takes up a decent amount of blocks when I checked extra data under data management (shows it taking up 2,439 blocks). Not that it matters for me though considering I have a 32 GB SDHC with 241,178 blocks still open. Now I just need to convert most of my music to MP3 so I can put some good songs on my SD card.