Springpad To keep everything organized nice and stable way. You can keep offline copy of your notes on your mobile as standard.
It has other unique solutions that I can not wait to be implemented in Evernote... Yes I use EN too. Latest update sorted most of my problems.
Jorte Calendar God knows how many calendars I tried! But this one takes the biscuit. It is pretty, easy, quick and it syncs with Google Calendar. Zoomable month view is just one of the functions that I like to use.
GOALS ToDo Full It is the most complete GTD application that I ever used. If it could only work with Google Tasks then I would use it like a mad man and be productive at last!! But it is at least good exercise to understand the whole 'doing things' magic.