I can see that the MBA is getting better and better. It is also making me wonder if I should replace my 2.4 Blackbook. My main question is this: Does the 256GB SSD that is available in the MBP models fit in the MBA? (If I bought an MBA, I would need more space than 120 or 128GB) Also, Apple should make a BTO option of 4GB RAM, or, better yet, make 4GB standard. I do not need to connect my Apple Portables to a display, so could the Mini-DisplayPort be replaced by a USB port or an FW800 (or 400) port? Is the 2.13 MBA more powerful than the 2.4 BlackBook?