Tesco has just announced a trial of its new "SatNav" electronic shopping list Android software ... not that there's any "Sat" involved, but any electronic shopping list that can be sorted into aisle order according to the store you're visiting is great news as far as I'm concerned ... always assuming the app itself is any good, of course.
I've been using electronic shopping lists, manually sorted (as best I can) into aisle order since I had my first Psion5, 12 years ago. I currently use OurGroceries to maintain a shared shopping list with Andy, but getting it in aisle order for minimum-fuss shopping is a bit of a lost cause, especially as we regularly shop in 3 different Tesco stores, so grouping by product type is as far as it goes.
Sadly, the trial is only available in the Romford Tesco Extra store, or I'd be trying it out in a flash! Let's hope that the Reading Extra is the next test site :o)