Portable expansion box/dock for Retina MBA 15"?

[unfrostedpoptar]

Hi all.

I'm sitting here with my 15" rMBA attached to a USB Bluray drive, Toshiba portable 1TB drive, iPhone, and wired CMStorm keyboard. I was wondering why no one (that I could find) have made a combo dock with CD/DVD/BD drive and SATA slot for a drive. Sort of like the Sonnet Echo 15+ ( http://www.sonnettech.com/product/echo15thunderboltdock.html) product but with a couple of differences:

• It's actually available
• It's flat and the dimensions of the rMBP to fit under the laptop
• Has a battery like the Lenmar Chugplug http://www.lenmar.com/chugplug

So, it would lock into all the rMBP's connectors like the Henge Horizontal Dock ( http://hengedocks.com/pages/horizontal-macbook-pro-retina ) but be more under the laptop instead of on the sides so you'd just have a really thick laptop.

Any pointers or ideas?

Thanks,

David