I'm actually beta testing the Atari2600 plugin modules for IFX1.0 at the moment.
The lack of flexibility, functionality and speed is astonishing!! If you really love getting bogged down by your work- get one (or more) of these!
Actually, in all seriousness, I'm glad to see Nova advertising here. It still proves there is some breath left in one of the few Amiga-orientated software companies remaining.
If you've got any sense at all, you will be buying IFX4.5
If you've no sense at all, you'll e-mail Nova for the price and availability of the Atari 2600 modules.
-john