Fired up Solomon's keep yesterday to see if it still worked. It hasn't been updated for ~4 years. I only meant to fire it up briefly, but ended up playing it for an hour straight. Such a great game; perfect blend of action/RPG and random levels, skills and such. I'm going to ask if there's anything quite like it, other than Storm Casters (didn't like it), Dungeon Quest and Pocket RPG but the answer is likely no, correct? I've searched and haven't turned anything up.
Not quite the same with classes, but Heroes of Loot 2 has a great arcadey Gauntlet ARPG thing going on.