Good points. My ipad 3 has 64 gb, but already half used. I am deleting stuff in preparation. A few like the national geographic will be read and dumped during my flight. I also purchased four 32gb micro SD chips, but will be traveling almost three weeks and ten each two tank dives planned. If I don't have enough memory, I will just trust to the one I was born with. Although that seems on the fritz more often lately. I also fear the loss of the iPad itself too! My wife looked at the recently arrived GoPro and simply said "it is too small. You will lose it! I hope to prove her wrong and to have a tether for the underwater setup t least. I have been looking at above waterline holders too.
---------- Post added December 16th, 2012 at 06:43 PM ----------
I should also add that iMovie itself is 529 MB, while Pinnacle (Avid Studio replacement) is only 65 MB and apparently more capable. I am guessing this is not an apples to apples comparison?