By breaking I mean that just installing ONE app from here TMO or just installing ONE app from devel & testing or just making one mistake in x term you might end up with device that you need to reflash. Price what you got to pay for freedom provided. You are 100% responsible for actions you make to your device.
And I just said that this is multimedia device. If Nokias outdated business model where every piece of device is fragmented and targeted to specifically to particular market group comes as surprise then you should maybe learn more about Nokia. E is for business PERIOD DO NOT TRY TO USE N SERIES IN BUSINESS ENVIORNMENT. Capiche? Or Of course you can try but well...have fun tweaking