A lot of laptops these days have a SD card slot, which is cool. The form factor isn’t so cool if you want to leave it in the slot long term, since the card sticks out. Too easy for it catch on something, and come out without you noticing or worse, muck up the slot.
Then I saw this cool gadget on Kickstarter. The Nifty Mini-Drive. You put in a Micro-SD card and it fits neatly in the SD slot. I kicked in some cash to get one of the first run models for my Macbook Air. Already picked up a 32Gig MicroSD card, so I’m just waiting for the NMD to arrive to get my geek on.