Just a brief follow up on trading in smart phone for Note 4. I went to a Tmobile store and asked what they would give me for my "smart" phone to trade in for Note 4. Neither the N900 or the Jolla phone come up on Tmobile's data base so they will not give a penny for them. It's a no go if you expect Samsung to give you $200 since you can't trade them in. At least that is how I understood it. For the rest. model...Tmobile will give + Samsung's contribution= Total OGN $86 +$114 = $200 GN2 $87 + $113 = $200 GN3 $275 + $0 = $275