There's a game called "Typhoon 2001" I found earlier today in searching for Tempest 2000 videos. Apparently it's a clone of T2K, and the guy that did some of the SFX for the Jag game is the one in charge of the Typhoon 2001 clone. Here's a video for it @ YouTube.. Even uses the same MOD-based music that the Jag cartridge had. Maybe THIS is what should've been released on XBLA? haha..

http://www.youtube.com/watch?v=hbPCUYkcHow