Magnets or glue???

[Zackmd1]

So what do you guys think is holding in the glass on the 2012 iMac? I went back to the keynote to see if there was any evidence of magnets when they showed the inside of the computer and to me it wasn't very helpful so Im curious to see what you guys think. For me this is going to determine wether or not I buy a 2012 or 2011 because I simply don't have $1750 to drop on a computer just to get an SSD...