I started up
websharing (I use the pay version, though) and noticed it could no longer verify the wifi connection because it could not ping the router. You can turn off this checking and still use websharing but I thought it odd.
So..... for the other unix/android geeks for whom this 'feature' annoys:
I checked out the ping command in a
terminal emulator on the Nook and sure enough, you have to be root to use it, it is not setuid. So I changed it back in terminal (after using root explorer to mount the system dir r/w):
$su
#chmod 4755 /system/bin/ping
#exit
$
And, of course, this makes ping work as well as websharing's wifi checker (assuming some security rules don't set it back as they appear to be setting back usb debugging).