I almost bought one until I double-checked they have no embedded video output, just an interface to drive an LCD (not an LCD VGA monitor, but an LCD). That kind-of puts the kibosh on using these for retrocomputing, unless you only want to run a small *nix server (for which they would excel at, since they have com ports).
I picked up a couple of these TS-3300 boards. They are probably not too interesting as a generic retro PC on their own, but might be interesting for embedded controller projects.
It might be on track but it has been pushed back a slight bit: