*Snowflake*
As with all races, I'll consider them on a case by case basis. Some games I run, I'd allow them, some I would not. The last game I ran before the Eberron one, I cut out gnomes and dwarves and paladins as not being part of that setting. It's very likely that the next setting I create, dragonborn would have a place in it; so will a harpy-like race, and thri-kreen.