Why is driver for Areca RAID controller (arcmsr) not included in 2.6.15?

[RParr <RParr@TemporalArts.COM>]

If this is not the correct place to ask this question,
please tell me where to go...

I am trying to find out why the driver (arcmsr) for the
Areca RAID controllers is not included in Debian kernel 2.6.15.

This module has been included in other distributions since
kernel 2.6.13 or 2.6.14.  It was not in Ubuntu Breezy (2.6.12) but
did appear in Dapper (2.6.15) (in drivers/scsi/arcmsr/).  When
Debian 2.6.15 became available I had expected to find it included
but, no luck.

Is there a reason this has been taken out?

Is there a way to find out if/when it might be included?

Thanks
R.Parr, RHCE, Temporal Arts