It looks like China Mobile is making good on its promise to carry out TD-LTE trials this year: the carrier is launching test programs in both Guangzhou and Shenzen, according to a report from the Chinese news site Guangming Online. As it happens, this isn't technically the first time China Mobile has invited users to test its LTE network, but it is the first time people can access it via smartphones (as opposed to routers and MiFi devices).
Curiously, the trial will initially work only on the TD-LTE-capable Galaxy S III, which is strange because China Mobile just unveiled a handful of LTE handsets at MWC, and didn't even mention the GSIII at its press conference. Once you've got that phone in hand, you'll need to preload it with 4,699 yuan worth of credits and sign a two-year agreement, with 388 yuan to be deducted each month. Already signed up for 2G or 3G service with China Mobile? You can add 1,500 yuan to receive a 4G device, USIM card and 15 gigs of LTE data (free for the first three months).