At the moment there are games and other media beeing designed to Utelize the Creative X-fi
Battlefield is the only game out ATM to actually use X-fi And it uses it poorly from what they tell me.

X-fi is a Great Investment not only for having great sound in BF2 but also for the future games and media
I think Windows VISTA will have somthing for using it too .

http://techreport.com/reviews/2005q4/so … dex.x?pg=4

Thats interesting to read to