Many more apps!
Lastpass and Xmarks are great apps (but you have to have a paid subscription to the service to use them). I am in love with PrinterShare -- let's me print from my tablet anywhere around the house to my networked printer.
A great app for family organization is Cozi - has a calendar, shopping, todo lists, all in one.
Waze is a cute little direction/map app that uses crowdsourcing so that you know when there are slowdowns or speed traps.