Basementscientist said:
I'm trying to determine what size ipad2 to purchase. I will be using it for e-books, apps, internet and watching movies.
Can I watch movies stored on an SD card with the adapter, and get a smaller ipad?
Movies take up the largest space, ITunes SD movies are usually 1.5-1.9GB. Also some never games, as well as offline navigation apps will use up a fair bit of space.
Ebooks and browser don't take away enough space to factor them into this decision.
Regarding your last question, you can't play a file directly from an external source, it always gets copied into the app folder displaying the file. The only way around that is to jb and use ifile, which for iPad 2 is not an option, right now.
If you don't intend to store music on the device, 16GB may just be enough.
I have the 32gb version, where 15.9GB is filled with music and there is space for 3 SD movies.