No as Mountain Lion wipes the lion install. The only way around is to copy the Lion boot image disk onto an different disk and downgarde by booting onto that.
What's all this about soldering memory?
Aren't the RAM modules the same as the last MBA which just slot in (and held in place with a single screw)?
Thanks everyone for your responses!
Huh?
Is there any reason to wait until Mountain Lion is released to buy a Macbook Air?
Wow, sounds like a backwards step to me
The RAM has been soldered in on *all* of the MacBook Airs ever released, this isn't new. The SSD *is* replaceable, but uses a non- standard module, with a