I've already told this to Caris, so I'll fill you in too.
I was on the phone with Argos for about an hour a bit earlier and they basically told me nothing. After a lot of waiting and talking to 5 different people they said that they couldn't confirm whether or not I would be getting it despite it being so close to launch :| I asked about how many they were getting and they said they were confident that they would fufill all pre-orders placed before the website put it's 'out of stock' notice up.
However, I don't think this is true as I'd imagine they'd at least be able to tell me I'd be getting it by now if it was. I guess I'll just have to wait it out. I did order three days before they 'sold out' though so anyone who did it before me probably has a much better chance of getting one.
I asked about the second batch and they said they couldn't confirm when it would be, so that's not looking good either.