I have created a webinterface with which you can login and create 1 list. There is also a php page with which you can retrieve the created list.

When I have the time I will add the sync functionality in the EasyList app and then you can easily create a list remote from any webbrowser. And sync anywhere with your N900.

Your wife/gf could update the list with shopping items and you could retrieve it as long as you've got internet connection.