There are definitely apps out there that let you handle email and calendars but I haven't found anything that just let's you jot down your thoughts and keep them updated. I've been sending myself email notes on gmail for quite awhile but it doesn't really work well. Everything just gets mashed together with your email and you can't go back and edit something so you have a million replys to every message. This app is more like Chandler... except it already works and you'll be able to use it in a few weeks as apposed to 2009.