French Simcard with Blackberry services?

I'm off to France next week and I know that my blackberry services won't work there from my current UK simcard. Does anyone know if i can buy a simcard that lets me use the blackberry services (blackberry messenger) in france?I'll only be there for a couple of weeks so i don't want a long term contract. I'm after something thats prefably pay as you go and cheap.

Is there a pay as you go simcard that will let me use the blackberry services? If so how much does the simcard + blackberry services on it cost? And where can i get it from once i get to france?

Thanks :)

Try Orange in a OEM store and I don't think SFR or Bouygue offers it.