SAP B1 9.0 for HANA - developer info

Hi,

We are currently trying to get our HANA server up and running to get SAP B1 version 9 running HANA.

I assume that most addons will continue to work on the B1 HANA version, because they make use of the DI API.

(Except for custom SQL's that needs to be checked for SQL syntax)

Is that correct ?

In HANA there is an application server (XS) available, is there some  kind of integration with B1 ?

Is it possible to update B1 Data in an XS application ?  Linking to the DI API won't be possible I presume ?

Thank,

Francis