Don't hold me to it, but, IIRC OWC had bigger SSD's for the MBA. I think the RAM is soldered to the board but the SSD isn't.not to hijack the thread but i too am between these two models either the 13" 1.86/4gb/128 or the 2.13/4gb/256 i believe i read somewhere you cant swap out the SSD since its soldered to the logic board correct? because honestly i dont need the processor but the storage would be nice. thnx
EDIT: A quick search on Google brought this up.