About the Designs i have to tell you: I don't think only on how it looks like an how stylish it is. And from the things I see, you will build in the same Hardware in then in the Meegopad T07. You know as much as I know, thar the thermal Problems with this device are very bad. So i think the first Design would be better, because the holes for the Ventilation are bigger and the processor can be better cooled. If the Ventilator in this device will be also a little bit better, it can be a very good Computer! I would also love if you can make a Dual Boot System on it with Windows and Android.
The Rest is very fine and I would like to have this Kind of MeeGoPad
To the T09: it is a very good design. Much space and it looks like a military aircraft nice to see and to have.
To the specifications:
I think 32GB eMMC are enough for the operating system and a fiew programs. The Rest can make a Micro sc card. This would hold the price cheaper because a bigger eMMC costs more than an Micro SD Card