Lets wait an see shall we, since RT is an OEM device only there is a good chance security will be higher on it, even more so if MS subsidisers some of the build cost to keep prices down, which I wouldnt rule out by the way! If they do that to keep prices low then they have every right to keep it locked down to them, of course it doesn't matter as the gods on here will fix it ;)
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Agreed, but Microsoft has made UEFI security a mandatory requirement for Windows 8 ready devices (whether this can be disabled is up to the manufacturer though). Technically though, this isn't about bootloaders and more about UEFI firmwares which are (supposedly) the next generation replacements for a BIOS.
Hopefully we won't have to see this as too restricting (meaning hopefully manufacturers will give a way to disable this, which is not prohibited by the Microsoft Windows 8 Ready specification) and will continue to be able to use whatever OS we want with our Windows 8 Ready PCs.
How did we get on this topic anyway? I thought we we're contemplating the overhead of an x86 emulator on an ARM tablet..
Either way, it would take significantly more instructions to make up even a simple instruction that's found in an x86 processor, which would be pretty slow performance wise, not to mention very inefficient as opposed to porting applications to the ARM architecture.
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