I've used bad ESN / IMEI iPhone 4's, 4s's, and 5's, as reliable iPod touches for years now. No SIM, no plan, no service. But able to plug it up to my Mac and transfer songs from iTunes and have all my email, as well as message thru wifi on iMessage/textfree. And I was wondering if the newer iPhone 6 Plus, with either a BAD ESN / IMEI / MEID, or iCloud locked status, will be able to operate as a full iPod Touch ??? Anyone know this definitively ? Thanks so much.