It's another big week in tech as the media world focuses on Apple's big announcement. But here at Double Tap HQ we are focused on what you have to say are the big issues, and at the moment our mailbox is filling up with comments on GPS devices and apps. How good are they, and do they actually help us be more independent?

Also on the show, the blind guys are joined by Nathan Tree. He is an accessibility trainer working in Oxfordshire in the UK and has just spent some time with the most talked-about device in the blind community at the moment, the Stellar Trek from HumanWare. Find out his thoughts on how well the device performs with competing smartphone apps out there.

Your feedback means everything to us, so get in touch. Our new phone number (the correct one this time) is 1-877-803-4567 or if you are in the UK call 0204 571 3354. You can also email us [email protected] and find us across social media @DoubleTapOnAir.