How does the Ledger Unplugged fit in with the other options? I am a happy Nano user but this looks like it would be very nice with a mobile wallet, no OTG cable. It says it supports CoPay, Mycelium, & Electrum. I was waiting on Ledger Blue but may have to give this a try.

http://support.ledgerwallet.com/knowledge_base/topics/what-are-the-differences-between-the-nano-and-the-unplugged