I'll admit it: I played Runescape for a long time, starting back in classic. It's been a long time since then, though, but I still find myself with an itch to play something with the simple yet gratifying trade skill system RS had. Fishing over and over to raise my level, or running between the bank and mine to get ore--it was all very relaxing. All skills could earn you a lot of money, and the more you did them the more advanced options you had access to. Anything like this on the iPhone? Preferably MMO, but it's not that important to me.