I have a little hp mini 210 that I decided to mount an external wifi antenna on. here are some pics of the Hp mini 210 external wifi aerial mod and some little descriptions to go with it. The main aim of the mod was to get an rp-sma connector on the outside of the case that I can connect any wifi arial to.
Awesome! Exactly what I am looking to do so I can add a third antenna to my new card.