Just a question , no doubt soon the plugs and charging leads will be hitting ebay ? is there any diiference to the plugs and leads the Apple sell at a massive hike in price ? or is it just the build quality ?

I wouldn't risk a generic cable yet. There are lots of reports flying around that they will not work because they cannot reproduce a chip that is contained in the genuine cable

I'm not sure that it's because they can't reproduce a chip. I'm sure they can - but they might not bother.

The new Apple dock connector is digital only. There is no analogue output. The Apple adaptor also contains a DAC so that the digital output is converted to analogue to let it connect to speakers etc.

There aren't cheap thunderbolt cables yet for the very same reason. Multiple chips that aren't cheap to replicate.

it's weird that you can already get the internal parts for it but not the charging cable.