contact management software

[wildrems]

hi everyone,

i'm looking for a contact management software with the following feature:

- need to be access from anywhere (web)

- need to be able to say, this conatc can be view by all, by this group (Group from Active Directiry if possible) or by me.

-need to be able to synchronise with pocket pc, palm and black berry.

so if anyone know a software that can do this, please tell me.

thanks B)