we have used gms for a while and it has worked well but some phones like Sony Ericsson w800i and K530i cant sync. our groupwise server and gms syncs and mostly all of our phones others with the syncml works too, we uppgraded the gms to version 3 weeks ago.

The phones have worked earlier so its strange. in the user activity it says "Unexpected failure detected: NullPointerException".
For every user the sync between groupwise and gms works.

Maybe a simple solution but not for me :-)