extfat is crap. I would call it double crap.
- Why I have to pay for it to microsoft? Because in other country there is such thing as software patents?
- Why it is a standard FS for SD cards bigger, than 32 GB? Why I have to pay for nothing when I buy any device, that supports SD (excluding dumb devices and linux devices, but including photo-cameras)?

If you want big files use ext3 or any other normal FS and let windows users have problems because of poor FS support in their OS.