I use an ALS/line-2 service from Orange UK.. Although the phone can't tell which of my two numbers was called by a remote caller, and I can't make calls from my 2nd number this is much more than the N900 I tested prior to release.. on that handset, calls made to my 2nd line number just received an unavailable tone..

I wonder if this is a UK specific thing, since Orange UK are one of the few telcos that offer the service (although only to business users now I believe)

I've not yet had cause to reflash my device, but I would've been loathed to loose the line-2 support if using the generic version.. The file size is different and the installed package list is different.. I'll put together a list