Lionel seems to have snuck out the release of the STM2. The first and only catalog it has appeared in is the 2016-2017 Track and Power Catalog. The Lionel shipping schedule shows that it shipped in December.
I have searched the websites of many OGR sponsors and also a couple of non-sponsors. I have found only 2 websites (excluding the Lionelstore website) that even list this item. Neither of those websites shows that it is in stock.
Has the STM2 actually shipped? If so, which dealers, if any, have them?