I can't speak for the devs, as there may be someone "motivated", but it's a 2007 device that only supports 802.11b/g and is limited by 100 Mbps Ethernet and a 200 MHz SoC.
It apparently had a build in 2012. Barrier Breaker 14.07 was in 2014 and Chaos Calmer 15.05 was in 2015.
Are you looking for the T-Mobile services, or just a router that you have lying around? If the latter, you'll likely be better served by one of the inexpensive (under US$20 or so), new devices in
(or if you can get a used TP-Link Archer C7, they're around US$40 here in "mint" condition)