So my little sister comes to me saying she "REALLY REALLY" wants this phone
here: (you need an account to see links)

BUT she wants it to have the Blackberry OS on it.
Now I like to think of myself as a decently smart guy when it comes to technical shit, but I've never heard of someone doing something like that.
Ofc I did a google search, but wasn't lucky enough to find anything.

So has anyone heard of doing this?
Can it be done?

Videos and links would be really appreciated.