I am considering buying the iPad Air 3 and am interested in using that when out and about, along with my iPhone 7. Thus far I have only toyed with an iPad - my wife seems happy with the 2011 iPad 2 - and have otherwise been depending on my MacBook Pro (2015) for most things. To give the iPad Air 3 a good chance of being loved I want to make sure that l've got maximum connectivity with the iPhone 7 with its lightning connector and the MacBook Pro (2015) with its USB-3 port. Transferring files, including photos and video, is obviously desired, without recourse to wifi which would not always be available. What should I get? A keyboard/cover is also on the list, and probably that pen. Looking forward to your replies - if I don't respond promptly that might be because I'm asleep - I should add that I'm in the UK but do travel across the pond from time to time so spending dollars is OK. I'm not using USB-C, nor do I wish to at present.