You can try ExpressVPN, VyprVPN, or NordVPN. All of these work as I have extensively tested all of them.

You can see the results of my tests at: Jump the Great Firewall

Are the three VPNs in the post above still good options? Also, do they all work on mobile devices?

Yes they are good options, but bear in mind no consumer grade VPN is not foolproof in China. There will be random days where it just won't work and yes they work on mobile devices.

Thanks, I can deal with a few outages.

I've cycled thru a few VPNs but VPN Proxy MASTER works for my phones both on WiFi and cell, YMMV.

Yes they are still good, and right now I would personally recommend VyprVPN as I am using it now and it still works. There is news that the government recently blocked OpenVPN, but VyrpVPN's Chameleon protocol is working fine. The new VPN I am currently testing is having issues with getting a connection.

You can see reviews of other VPNs over here

ExpressVPN working fine for me, albeit I think it's the most expensive. During the CPC meetings in November, usage was very spotty. They were updating the APP on a daily basis. Right after the meetings ended, usage returned to normal. We'll see what happens in February when another crackdown on VPNs is rumored to kick in. Just this weekend on a trip to Hong Kong and got an HK SIM card from China Mobile that includes coverage in Southern China. With it I can access blocked sites since it's roaming to HK.