If you can connect to the internet...download a few of the below programs, if they are not on it, as well as one that is not. Movies/Music/Web pages are the easy way to see how it looks/works...Either get a MicroSDHC and put these on or use the web to run, hope it is a fast cionnection...

If you have been reading then you know how to boot to root and a few commands, also below, should let you know if it is a "Good" N810.

Easy to install
load-applet
openssh
Becomeroot
Statusbar-clock
Skype

As root
#apt-get clean
#apt-get update
#apt-get dist-upgrade