well if ur a ipad user...
u need a
ipad jailbroken
connection kit
camera cable
can import the pics directly to ur ipad..thus deleting the ones in ur cam. been using it for 1 year odd..very happy to use it.
even for ipad2, the storage on the device is also limited, no? wouldn't it be better to buy more cards instead?
calculate how many photos you shoot in 1 day. multiply it by 25MB (Raw file)
then multiply that by the total days you're going overseas. then you'll know how many 32GB / 16GB cards you need.
example, if you know you're going to take an avg 500 shots per day.
500 x 25MB = 12,500 MB (~12.2GB since 1GB = 1024MB)
if you're going away for 5 days;
5 x 12.2GB = 61GB
that will take like 2 x 32GB cards? maybe can bring another 1 more 32gb just in case.
if you're using sd cards, the cost of 32GB cards have dropped quite a bit. at the it fair, a normal class4 32GB cost about $35-$38.
cf cards probably cost more.
this is still cheaper than buying a portable storage device.