hmm...
a great device.
Even better would be the standalone;
same thing with a display that can show QRcodes, a camera and a micro usb port switchable to charge only (no data) mode.
Question folks - which Android app can do offline transactions using QRcodes and a camera?
If by offline transactions with QR codes you meant this below, it has not been implemented yet, neither with QR codes neither with NFC.
https://bitcointalk.org/index.php?topic=230010.msg2424481