I wrote to Sirius a few days ago, just to see if there was currently any way to stream sirius to the N900, and as I suspected, I received an email saying that at the current time there is nothing planned, but they appreciate my interest.
I know that Orb used to be an option for most devices with a web browser, and while the performance wasn't great, in situations like this, something would be better than nothing. But the sirius channel (provided by usirius) url's no longer work.
I'm not one of those people that consider my phone useless without someway to stream sirius, but it would be a really nice feature.
Can't seem to find much information on this though. Does anyone know if there is anything in the works?