The folks over at Goblin Portal and Psychic Software have started a closed Alpha of their upcoming Stealth/Puzzle Platformer Goblins & Grottos. In Goblins & Grottos you play as a goblin trying to escape from a team of greedy adventurers and will include a built-in level editor and an online sharing facility when the full game is released.
This closed Alpha includes the map making facilities, online sharing and social features. Those interested in signing up for the beta can do so over at www.goblinsandgrottos.com. No official release date has been set at this time.