1- Can you daisy chain through this adapter
2- Can you access a boot harddrive via Target mode through this adapter
God I hope so.
I didn't see any pass-through connector on that adapter (just another reason why daisy-chaining sucks) so it would have to be the last device in the chain (a real problem if you had planned on having a display port monitor connect there that also doesn't have a pass-through).
You can connect a USB3 device into a USB2 port, it'll just run at USB2 speeds.
I think he meant they should have a USB3 adapter for the Macs that only have Thunderbolt (i.e. so you can run USB3 speed devices on such Macs). I believe there is at least one hub product out there that does just that, but I haven't seen a portable adapter as such, yet. Being able to use USB2 speeds with USB3 devices is beside the point. He wants USB3 speeds on a Thunderbolt port adapter.
I hate to sound like a broken record, but I don't really get the complaint.
That is kind of obvious.
If you're already willing to pay big bucks for a MBP Retina, an extra $60 for a couple of cables isn't going to break the bank.
Price has NOTHING to do with it. The inconvenience of having to carry around adapters and dongles (which do NOT appear to have pass-through connectors so you can keep daisy-chaining devices) has EVERYTHING to do with it. You suddenly have all this crap hanging off the side of the MBP (they're not even just plug-in dongles, but 'wires' hanging off the side, which makes them a bit messy) and your already limited supply of ports is suddenly taken up by a stinking adapter that was never needed on ANY previous MBP models. Going 1/8" thinner is a REALLY poor excuse for not having enough ports, IMO. The darn things don't NEED to be that freaking thin and it clearly affects their ability to provide enough connections to be as functional as previous products. The point is that the thin factor was 100% UNNECESSARY. Even if they insisted on removing the optical drive, they could have used that space for a 2nd hard drive or a larger GPU or even more battery power. Instead, they just made it thinner which has no real practical benefit.
And the dongles themselves aren't going to add noticeable bulk, since an ethernet cable already *is* a cable (so you attach the dongle and now you have a slightly longer cable) and a FireWire drive already has that FireWire *cable*, so now you attach that dongle and you essentially have a slightly longer FireWire cable.
But you have to keep that dongle with you so that means either you're forced to use a carrying bag with a pocket for it or keep it in your own pocket and hope you don't forget to put it in your jeans or worse yet forget and put the adapter in the washing machine or something equally horrible. That can never happen if its built-in to the machine itself. Plus I see no pass-through for daisy-chaining on these devices so if it's taking up your Thunderbolt port, you've lost a port or have to play shuffle with your devices to make it the last device (and too bad if you have a monitor without a pass-through because you'll have to choose then).