Unless someone has released a homebrew application that allows it then NO, The M3 GBA Expansion Pack will not work natively on anything other than the M3 DS Real. You might want to do some research to see if a a homebrew app is available to use it though. You should however be able to sue the RAM part of it as you manually patch the Browser to use the RAM anyway.
Really? I thought that all slot-2's work with Slot-1 booting devices, especially since they are the same company... But I would trust mr_hanky over what I think as he sounds a lot more knowledgable on this than me.