I’m glad we got an answer on that.
My main worry, however, is that they won’t make a 5mm 1.8″ PATA-ZIF drive at a capacity higher than 64GB. My girlfriend has a MBA, and I can forsee the time coming of her running out of space on it, and I’d like to install a bigger SSD in it sometime in the future. Ideally, I’d be quite happy if it topped out at 256GB for around $200 sometime in the future, but I’m not optimistic — I suspect the PATA ones won’t ever go that high, especially since the current MBA is on microSATA.