Been charging it from USB since day 1. As luck would have it, I forgot the wall plug at my friend's parents house, some 80 miles away... I was spending thanksgiving there when I got the NC. So yes, charging works from the computer, but as they said, it's slower. Not really a big deal though, I do this crazy thing at night called sleeping, during which I dont have much use for the NC, so it sits next to my bed, charging off of the laptop. And the cool thing is that it'll continue to charge even after my laptop goes into sleep mode.
I see dead phones, calling around just like regular phones.
My cell phone history: Ericsson GH788, Mitsubishi T200, Sanyo BAM 201, LG V111, Ericsson T28, T39, T68, T68i, Panasonic GD87, GD55, Nokia 3660, 6600, Motorola V525, A360, Panasonic X701, Palm Treo 600, HTC Blue Angel, Wizard, Herald, Kaiser, Touch Pro 2, Doubleshot MT4GS