- new intel chipset and processor that will let the battery last longer (they say up to 9.5 hourse). the cpu is 10-20% faster, the graphics about 50% faster.
- the battery compartment now sits flush for the 6-cell (but reaches back father, instead of down)
- soon more options, though partly same as old mini 10 (the existing wwan, and tv options, but also broadcom decoder which lets you play hd, which for instance will allow youtoube hd properly)
- design has changed a bit
I guess those are the major points.
So if your main point is that the netbook should last as long as possible go for the 1012.