I also bought battlesphere gold. It's more then just a game.
Ofcourse Battlesphere is the game, but it also includes the jugs. With this you can download roms to the jaguar and also run software you downloaded from the net and previews of new games.
I know it's expensive but I think the people from Battlesphere and Songbird are about the only active people in de development scene.
I think we should be happy that the Jaguar still has some active people programming for it.
Now that the CD-rom bypass is made I hope some smaller companies or programmers will program for the jaguar and release there programs on CD-R for a much lower price.