Ive been using this app for awhile now and Im quite pleased with it. Its not something I use everyday but its useful when I use it. Theyve made several improvements such as online backup/restore of your cards which is very nice and others as well.
Overall, a great little app to reduce the amount of membership cards and stuff in your wallet. FYI, this one works with cards that have barcodes on them. It wont work for cards that have a magnetic strip on them as you cant swipe your phone yet. :p
Gragorin about mobile-pocket loyalty cards