no point bickering over such things.
most of us have fair confidence over our DSLR probably down to -10C, however it is often the compacts that is a bit worrisome as their battery is more consuming. so if it is a compact, it is probably legitimate. i read from magazines that some guys shooting at the atlantic need to worry about their stuff at -50C, that is where u really need to worry and get the right stuff, but so far the rest of us would be travelling only to places that is as cold as -10 to 5C, so if none have any issue with their DSLR, the rest should all be reassured.
i try to put together good advices from everyone into my travel thread, so worried forumers can go in and get some ideas.