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- Joined: Wed Jul 17, 2013 2:51 am
The most notable difference is that the G2 is 1920x1200 and uses a TFT panel (instead of the G1's 1080 IPS).
There are some other minor differences like the shape of the arms and the G2 ships with a quick release plate.
Some retailers (such as B&H and Full compass) still have the G1 in stock so you can still get it.
There is mention (viewtopic.php?f=4&t=151453) of the G1 viewfinder working on a UBG2 so I'm inclined to say yes, they'll both work for you.