I spent the last few hours trying to find out how to restore from a flash drive but all the posts I found were either incomplete or were using an DVD drive. Since I just figured it out myself with some trial and error I wanted to post on here so others don't have to get stuck like I was.
It's actually pretty simple:
1) Copy BOTH the "System" AND "Recovery DVD 1 of 1" to the SAME flash drive.
2) Go in to the BIOS/UEFI and set the USB port to boot before the HDD. I think it was labeled as USB - HDD but I can't remember the exact label.
3) Restart your W510 and it should bring you to the Acer restore utility.
4) Follow the prompts and you'll be all set.
Without putting both discs on the same flash drive the restore utility wouldn't recognize another drive plugged in either the recovery files copied on to it. From what I was seeing, this was a hurdle many people were hitting.
EDIT 1/14/13
Sorry about that guys, I got ahead of myself because I wanted to get this up as soon as possible last Friday.
After my step 4, the install will ask for you to insert the System disc eventhough it is still on the flash drive. What I found to work was just turning the tablet off and then restarting it. There is one caveat, though. By ending the setup you won't have any touch functionality. The way I got all the drivers back was by downloading the driver pack found on the support page and running the included executable.
My apologies again for being hasty in my posting.