Update, now Called G2 bmx, as of 2018.
205 E Emerson Ave, Orange, CA 92865, US (951) 966-4551
So, in 2015 GAry Turner & his son Craig have made some new frames that look the same as the Old GT frames.
You can find them at http://gt1972.com/
From the site:
It started back in the early 70's with Gary Turner watching young riders at the BMX track. Most of you who have followed this history already know of the BMX legend that is Gary Turner.
Well in his honor, we are bringing back the 4130 Chromoly, MADE IN THE USA, vintage style BMX bike frames sets in a 26", 24", 20" & later possibly a 29" beach cruiser style. These sets include a frame, forks, handlebars. All in a series & Specially Limited from #001 to #100 of each size.