I keep hoping to hear Chadwick's Mars Needs Steam develops some of it's own. Steam, that is.
Still folk pluggin' away here and there. Some manufacturers having nearly the same thing, such as Ironclad Miniatures.
Also, as I posted to the SGOM Yahoo! group, from topics on the Lead Adventure Forum:
Roughly 28mm, they seem more appropriate for the original RPG or Soldiers, but if you know of the Warlords battle of many moon ago, you will know Sky Galleons in 28mm is possible, and quite beautiful.
Two ships are definitely Space 1889 inspired, and the third at least a nod.
Fingers crossed as to when/if available to those of us of the great unwashed.
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Please note, I'm promised the first of the Martian screw, if he gets the kinks out.
Doug
Edit: Whoops, I forgot, one of those got shown here on TMP. TMP link