the US is a different matter entirely that would need a court's approval, and that court would be the one in Sweden, not the UK
Are you sure about that? Doesn't the extradition treaty between Sweden and the UK explicitly prevent extraditing people who have already been extradited? Sweden would have to deport him before he could be subject to further extradition requests.
8 core 64 bit ARM chips with GPU built in are fairly common and 10 core chips already announced (Mediatek), with 16-48 core vaguely hinted at for servers by other vendors
A bit more than hinting: Cavium is selling 24-48 core ThunderX (ARMv8) chips. I think the first one shipped a month or two ago.
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