Maybe I jumped the gun just a little. Neither one of those AC adapters work properly. They charge the N800 for a few minutes and then stop. I'll try a few things (different outlets, etc), but it looks like the standard AC-USB wall adapters are not so good for the N800. I do have good news, though. I've tried it (5-10min) both plugged into a USB port on my laptop and plugged into a tiny USB hub from Targus (giving it power with one of these AC-USB adapters and the Y-connector cable that came w/ the hub), and both of these options seem to work without a hitch. I do have one more bit of bad news, though...one of the two cables (the 2nd one I tried) has the loose connector issue that was mentioned earlier in this thread for a different type of cable. I'll do a little more testing and contact the seller for how to proceed. Should I also mention that there will be some additional buyers if he/she does some QA to make sure the cables work properly?

EDIT: It also charges fine from the hub when the hub is not receiving additional power. I have the N800 and the wireless receiver for a Logitech mouse connected to the hub.