Make it available for PC.
Not everybody lives and dies by their phone/tablet. It sounds like a good concept, but I'm not the only one who won't use it because it's not available to us on PC/Laptop.
Kevin Koenig commented
Honestly the only reason I am not buying this app is because it does not have a PC version. I want to be able to plan my packing list on my PC using a full size screen and keyboard.
Likewise, it's incredibly tedious to construct new lists on the phone
I would love to be able to edit on PC/Web as well. Great for initial setup.