1. The 6 cell battery is flush on the 1018 and the 1012
2. A standard 2.5"
SSD is fine the only one that takes the Mini PCI-e
SSD is the discontinued Mini 9
3. The 1018 and OSX do not work as well as the 10v (1011) and I am not even sure if anyone has even gotten it to work successfully yet
BTW: the 1012 is the same but it has 1 more USB (2 vs. 3) and a mic jack that the 1018 doesnt have and both are fanless..the 1018 uses DDR3 memory while the 1012 uses the DDR2 memory, the 1012 has the N450 processor and the 1018 has the N455 Processor, both run at 1.6ghz, and both have the GMA3150 graphics

PS. Welcome to the forum.....
And also the battery sticking out at the bottom is actually something I like on my 1010 ...for 1 it puts the keyboard at a better angle for typing and for 2 it also lifts the netbook up higher to give it better cooling being as where there are no fans