Yahoo cardDAV?

[rstark18]

I'm setting up an iPad for my mom and want all her info to be cloud based. She uses yahoo (I use gmail) and the only thing I can't get working is syncing her contacts. I was tryin to get yahoo's carddav server working but no matter what I try it won't work. It's supposed to work on iPhone with ios4 but what about the iPad? Are there any other contacts solutions?