...that I am pretty sure about (don\'t hold me to it though, this is just what I know of at the moment).
Implemented:
Agility
Strength
Endurance
Intelligence
Charisma
Will
Sword
Axe
Melee
Light Armor (bugged for some people though)
Crystal Way
Dark Way
Red Way
Blue Way
Azure Way
Brown Way
Mining
I think the rest are not implemented. You can still theoretically train in most of them (cannot practice), but it\'s a waste of trias. (I did this a long time ago with shield handling and body development).
If there are any I forgot, please post. I think blacksmithing, all the crafting ones and knifes & daggers (there was a rogue with a dagger I saw in the dungeons) are next to be implemented from what I have heard, but I would be interested to hear what Talad and other devs have to say.
Hope this helps,
Xirius