Are there any SyncML clients for the iPhone that will do calendar?

I could quiet my iphone hordes slightly if I could just offer a low/no cost
solution for calendar sync since Novell's solution has no eta and is hardly
on the horizon as a possible solution.

GMS supports SyncML which I have success with some mobile device using, am I
wasting my time trying to find a similar solution for iPhones?

My problem is that I just don't know what is out there.