Well, I've got some version of bitaddress onto the usb drive (think it's the CTRL+S download) but can't get it uploaded to the tablet - have no idea how to do that. I presume I don't actually need to do that - I could make the paper wallet just with the usb drive attached to the tablet. the bitaddress files show up that way. However, they're not allowing me to generate an address offline; I 've tried it on my main PC offline & it won't work offline there either. There are no green dots moving around when I move the mouse. How do you get it to work offline?
It's an online site so just generate your address, check if it's a new one, print the keys and send your coins.
You can also install a fresh copy of bitcoin client on your new tablet and generate an address there, then copy the public key only and mail to yourself, encrypt the wallet and go offline. When offline you can copy the wallet.dat file, rename it and store it somewhere safe.
If you ever want to import an address to an existing wallet, just type this command in your console.
bitcoind importprivkey "5yourveryveryveryverylongprivatekeystring" "my-new-key" # "my-new-key" is a label for the key/address pair and is optional
If you want to import a stored wallet.dat file, install bitcoin client and swap its wallet.dat file with the one from your pendrive.