I arrived last night in Beijing for a program hosted at the Chinese Academy of Science, so I'm behind the great firewall. Omnifocus and Toodledo appear to sync about as well as in the US, but Things beta fails to sync. I suspect it's because Cultured Code uses some homegrown technology, but that's just a guess. I haven't tried many of my standard tools like Dropbox and Evernote yet, but I will be staying long enough to try them all. I'll post more if anyone is interested.