Here's the classic tension between open systems and general consumer-oriented ones.

When we download and play around with linux on our computers, we implicitly accept responsibility.....Nokia have developed a device for general use that builds upon linux, but can't separate the OS from the device with respect to support. They can't just not support it, that would be suicide....so they close a bunch of doors that present the greatest danger to linux novices - personally, I wouldn't have included a terminal either, let alone root. What I would have done is stripped all 'pointy objects' from the system, and made available a "hacker upgrade"....a one-stop install that gives back full linux functionality. Plaster warnings all over it and do whatever to CYA, but enable the hackers to operate as they always do, yet protect the vulnerable novice from their misguided enthusiasm.