It is an Edwards horn:
http://www.edwards-instruments.com/trumpet/gen3/
The early comments about this horn have been very good. In the trombone world, Edwards makes one of the very best custom trombones (along with Shires, Rath, Thein, etc.). It took a little longer for the trumpets to come around. But there is considerable interest in the Gen III.
The Generation III Bb and C Trumpets offer an integral leadpipe system which allows a player to change leadpipes efficiently. This design creates improved stability throughout the harmonic series compared to non-modular trumpets. Five leadpipes are available.
This has been an innovation on bones for quite sometime, interchangeable leadpipes. Different playing requirements may require a different leadpipe. That along with different mouthpieces gives a player ultimate flexibility and choice. The price tag of $3000 is not outrageous for what it is I guess.
By the way, Steve Shires (Shires makes an elite custom trombone too) announced that he is working on a custom trumpet. For the longest time, trumpet makers moved into the trombone market (Bach, Getzen, Benge, Kanstul, -- even Callet made a jazz trombone). Now some of the elite trombone makers are making trumpets. Isn't the brass world just grand!
M&C