Hmmm, you're right about SBox, but you already do run a Linux kernel. You could run the very same Maemo 5 Linux kernel in an ARM emulator (QEMU...). However because the hardware isn't emulated it probably won't work in that DRM-mode even though you enabled it.

What is even easier is if you can run QEMU on the N900 itself. For that it needs host and guest support. You then backdoor the QEMU VM, and let it run everything signed, while in reality you're in control via the backdoor (rootkit). From there the hard core fun part begins.

At least you can execute arbitrary code, and start debugging to learn how the DRM works. Then you need to develop a library which emulates the DRM and you're done. Or just hexedit the DRM library a bit. SoftICE would also help. The part to pay attention to is where it determines authentication is correct or not.

On OSX it'd be wiser if they'd keep their jailbreak intact and gradually figure wtf changed in the new firmware and slowly but surely import the new binaries in an already broken jail.

I don't care much either, btw. I find Comes With Music a rather fair service. Plus, I do wish it'll be easy to make micro payments. Like for example, a week subscription for Ovi, signed up & paid for in 3 or 4 'touches'. Lost in Spain? Bah. Buy a license for 5 EUR.

Besides, its the freedom of the developer to pick DRM. I just don't believe it generally works well unless its some kind of bulk service like Comes With Music. As soon as it really pisses off a talented techie the system will fail. Cause you gave him or her the itch to scratch.