As a whole the Gnomes tend heavily to the Martial based roles, and even when approaching some type of arcane or divine based power it is found in the fighting classes that get their power from those sources, such as the Avenger. There is a council of Warlocks within each Gnome tribe that make up the rulers for that particular tribe, as well as those that they may be training to someday be a leader or have strong aptitude towards that class.
The only race to live in the burning hot dessert of the east. They have hidden watering holes and an unnatural ability to navigate within the desert and find safe locations to rest in the heat. They are a much harsher and violent race than the fey trickster described within the PHB2.