I've been waiting for years for that (or at the very least being able to manage the watch from an iPad, as I tend to carry that around with me).
The only other thing the watch is missing is the ability to connect to bluetooth in my car, so if I have left my phone behind I can still answer calls or listen to music. I'm sure this is intentionally crippled as it starts the pairing process then fails - tried in several cars with different makes of head unit.