Yes, all the styles from T2 work in the S900, I have both, one thing, not for the styles, if you had edited SMFs with some voices that are NOT available in the S900 factory, TVNs, you must re-assign a similar sound. This apply if you have a USER style that have a T2 assigned voices no available in the S900, otherwise, works like a charm !...

This also applies the other way around in STYLES.