I love the new holy Pallies, there's so much ambiguity between attack and defense. That's the kind of thing I would love to see more of on the other healing classes as well (I speak only from my shaman perspective). Telluric currents is a cool concept, but I just don't have time to cast a lightning bolt. If there were a talent capable of making LB instant without having to use nature's swiftness, I would be much more likely to utilize it.
I definitely don't feel as awesome as holy paladins right now and I see openings for that. Even if it's just in the next Xpac, I actually would like some optional damage talents in there.