I wonder who paid who in this deal. Is free Mathematica used to prop up an OS no one uses, on boards no one can buy(for their normal prices). Or is it raspberry pi foundation taking part in Wolfram advertising? Mathematica is a very nice product, but it's expensive. They tend to "get" people by offering cheap licenses through universities. Then there is free and open source Octave. It is just as good for everything I used it for, but sometimes code for Mathematica requires tweaking before it could run on Octave.
Raspberry Pi Foundation gets another high profile and very desirable piece of educational software to include in their OS so it's a big win for them (and some of their users).
Wolfram gets a bunch of potential paying users when the children/college students/hobbyists get into the workforce and decide to use Mathematica in a commercial setting or pay for licenses of their own to use on their own more powerful workstations at home.
Looks like a win-win for everyone. I'm not really understanding all the negativity here. If it's because Mathematica is closed source, the Raspberry Pi OS image already includes closed source software like Minecraft education edition.
