Starting tomorrow (the 19th) I will be making updates to the wiki to bring it up to speed as well as add how-to's for various functions and hardware.  Thankfully MinePeon has been developed in such a way that you can more or less plug it in and it just works!  However some people (including myself) like to make full use of the Pi (I'm running my Pi stock at the moment, aka at 700mhz, and cgminer only uses 2 - 3% CPU, even while connected via SSH and HTTPS I haven't seen the total go over 5% aka there is a lot of room to play with).  I will be including some Linux basics as well (although this doesn't take priority).