I too like this app, especially that I can write a list on my laptiop and sync to my Google Nexus 7.
When a list item has a note you will see a little Green icon underneath the item name, click on the item and use edit to see the note.
IMO it would be good to be able to see 1 line notes in the item (same place as the icon) and this IMO would be a good suggestion to the writers.
Sell by dates on pantry items.
2 for 1/BOGOF type discounts (currently dealt with by altering the price and making a note)
minimising done catagories and moving them to the bottom too.
Whats the UPC for in the web version? I say this because you cannot see the UPC on your device.
I would like to be able to enter a store name also, perhaps some stores like Asda, Tesco etc ( like catagories) and drop down select them.
I would also like to add a 10% discount when shopping at Asda.
Perhaps if using stores to display the price at different stores so I can decide to buy when at Asda instead of Tesco etc.
I also think they need a forum where issues like the above can be discussed, I might point them to this thread when I get a response to a question I asked (BTW - they have really good CS and answered a couple of questions on a Sunday).