Current “iPhone” UI element has options “4” and “5”. iPhone 6 is out for more than a year now and wireframes with iPhone 5 look really dated to our clients. I do understand that it has the same screen aspect and for me it doesn’t make much difference, but some clients do really care about small things like that.
I just replied your email but wanted to share the reply here too in case others have the same request:
We are actually in the process of discussing the best way to update the iOS controls, and we hope to have them updated soon!
In the meantime, I think this Mockup To Go will be very useful: https://mockupstogo.mybalsamiq.com/projects/ios/iPhones
Here is the way to use Mockups To Go if needed: http://help.balsamiq.com/mockupstogo
Also, here is the way to import them in myBalsamiq: http://support.balsamiq.com/customer/portal/articles/131430#mybalsamiq
Thanks for the feedback!