Well, in Dungeons and Dragons Online, we do have a need to check for traps and hidden doors and lockpick locked doors or chests as well. So I think there's a good example of what they can put in game, and very likely what they have looked for to build this game.
The only thing I disagree is the number of attempts one would do. Once per day is just nothing. I think that 3/day would be more reasonable. Perhaps characters would start with a one chance only to pickpocket on lvl 1, and when the char lvl up, it would choose to get more attempts or not.
Well, I don't see many people talking about the druids. I would love to see druids (summoners, shapeshifters, elementals, swarm, sentinel and primal guardian) in this game!