Interesting and innovative idea. If you know a lot about circuit (logic) boards, and how to solder, someone has posted where to find several internal USB connection points on the Rev A MBA logic board.
I agree, adding 32 GB to that would be really nice. Not that the USB will be faster than PATA, but to add 50% more space could be worth it.
Has anyone found a 128 GB PATA SSD for the original MBA?
I am not a big original MBA fan, but would be cool to see some alterations like that. I am a tech fan, and I think an original MBA could be fun to modify and play with cool ideas like that.
Good luck.