What operating system do you plan to use? Debian GNU/Linux (without enabling
the non-free repository)? You know that Trisquel was not ported to the ARM
architecture, right?
By today's standards, 512 MB of RAM is (very) low. You will have to use a
light desktop such as LXDE. Do not expect to run GNOME 3 on this hardware!
The main issue you may encounter is a lack of free driver and/or firmware for
the Wifi card. As zwick mentioned, the solution would be to buy a
freedom-friendly alternative, e.g., on ThinnkPenguin (by using this link, 25%
of the benefits made on your purchase go to the Trisquel project).
