Thunderbolt is built to be daisychained. Plug your external monitor into the Thunderbolt connector and plug in a series of hard drives on the other side of the monitor (or whatever). Connect to multiple monitors and hard drives at home with just the one connection to your MBP. How is that dumb?Having the Thunderbolt port be the same as the mini display port makes absolutely no sense. It's safe to say that one would use Thunderbolt when using an external harddrive, being tethered down to a desk, in most cases when you're doing something that labor intensive (video editing for example) you'd also be using a larger monitor WHICH USES THE MINI DISPLAY PORT!
So, what? Use Thunderbolt with the external and deal with the small screen, or use the minidisplay port for the monitor and use the external on the sloooowwww usb connection. Seems like a dumb move.
HOPEFULLY this is just going to be a problem with the 13". Like how they combined the Audio In and Out in the previous generation. If the 15" and 17" have this combined Thunderbolt/Minidisplay port, the thing is totally useless for any real pro uses.
Why wouldn't you want to future proof the bandwidth of your video and storage technology if you could? A Thunderbolt connector can still terminate into USB 2 or 3 or even eSATA: http://www.youtube.com/watch?v=kidmWiqKzqY&feature=player_embeddedIt seems people are forgetting the current limits of hard drives. SATA II, which is the bus used on most modern hard drives, has a max speed of 3.0Gps. SATA III, which was just finalized sometime last year, has a max speed of 6Gps. And even then only the very top of the line SSDs need anything faster then SATA I, which maxes out at 1.5Gps. Light Peak has a max speed of 10Gps. Thus, Light Peak drives will be no faster then eSATA drives.
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