So far from what i have looked at, noticed the build quality is very much like the M70 series, similar locations for heat vents etc and size is comparable. The battery however sticks out from the back a bit because it has to accomedate 3 extra cells to keep the battery life comparable to the M70 series (2.5hrs) that i did not like at all.
Very silent unit, didnt notice the fan turning on too often unless i had it sitting on the bed or sofa which in turn blocks the bottom exhaust vents. Screen, keyboard layout is very much exactly like my A70 series so i have no complaints there. The only major complaint i have about this newer layout is the mousepad, it has a dual purpose. click on the top right corner of the pad and it lights up blue, then you can control the volume or shortcuts via the icons on the pad. I find that very annoying since i use the side scroll a lot to read long winded documents and as i use my finger to scroll down, it activates the secondary menu and stops the scrolling from working unless i turn the secondary menu off..
next up, i will run some 3dmark/futuremark bench tests and see how it performs and I will install quake 4 and fable to see how it handles those games since it has an ATI RADEON MOBILITY X1600 with 128mb (despite what the toshiba site says, it is an X1600 not an X1400)