Update:
Sprint on 2/11/2015 did an about turn and decided to unlock iphone 5c, 5s , 6 and 6 plus. This was counter to what they had been professing all along.
Sprint still refuses to unlock the iphone 4s and the iphone 5.
Rob Pegorara @ Yahoo tech wrote an article on which carrier has the best deal on the iphone 6 with 2 GB of data (https://www.yahoo.com/tech/iphone-6-plans-compared-at-t-verizon-sprint-and-97601904249.html) Rob did a great job of analyzing different plans and determining which carrier to go with. Rob however does not take into account the Residual resale value of the iphone 6. No one really knows what the residual value will be down the road. However, the Sprint iphone 6 or 6 plus will have the least residual value because Sprint will not unlock the iphone 6. I would highly recommend that you take that into account when you are deciding on your iphone 6 AT&T and T-mobile iphones are portable once unlocked and can be used on each others GSM networks. The Verizon iphone is GSM unlocked and can be used on either the T-Mobile or AT&T network once it is has been activated on the Verizon network. The Sprint iphone 6 has the GSM bands to work on AT&T and T-Mobile but Sprint will not unlock the iphone. Sprint is a completely different story. They will not unlock the phone – read my blog on
Sprint – Do the ethical thing and unlock our Contract free iphones
Sprint in their unlocking policy clearly stated that “Sprint is working to ensure that all devices developed and launched on or after February 11, 2015, are capable of being unlocked domestically.” Since the iphone 6 was launched on September 19th, 2014, it will not be unlocked by Sprint.
What does that mean to you
1) That phone will always be tied to the Sprint Network 2) You cannot take that phone with you, if and when you want to leave Sprint. Sure, you can take the iphone with you, it will just be a very expensive ipod! 3) You can try selling/trading it but because that phone is not portable, it will always have the lowest resale value. Rani Molla wrote an excellent blog on Where can you trade in your iPhone for the most money?. If you see the graphic in the blog, you will notice that the Sprint iphone consistently has the lowest resale value. Like I said – think twice. Update – the New iphone 6 bursts all the myths in Sprints unlock policy. You can read all about it here http://store.apple.com/us/browse/overlay/iphone/about_unlocked … . short link to this page http://bit.ly/1xeZznw
jackmehra 
Sprint has always been too hard of an company and customer satisfaction does not seem to come first for them. I wouldn’t suggest this carrier to my worst enemy…
It is always good when unlocking direct is made simple. But what can we do when everybody does not share the vision.