Memory based stuff IS better than a HDD. Too many moving parts, more energy consumption / less battery time and read/write rates aren't that great.
Void your warranty on a device which only comes with a 1 year limited warranty? I know this post is old, but your comment was invalid then as it is today.
This is a great instructable, but I would prefer to use an SSD due to the 3-6Gb/s ... seems more legit to me. I think they make an SATA to ZIF connector too... going to go that route ; but thanks for all the information