Seriously? You hadn't even thought about it? [How can he not have thought about it, given that they might be stuck here FOREVER!]
No discernable difference at all, just like everything else. Hence the need for toys and other necessities! [He grins.]
I'm not sure I actually have any tech needs, given that there's no actual money changing hands, though Ianto might like a hand with computerising his handwritten inventory? Or feel free to just come and have a snoop, if you want to!