What can I not say about Evernote......
I use Evernote on my iPhone 4S, MacBook Air, iPad2....I was actually in Lake Tahoe recently and had none of my devices with me. So, I used my wife's MacBook Pro and logged in to Evernote.com and accessed all my notes.
It's free, fast, collaborative, goes across all platforms, and they provide free professional development ideas. Evernote has a great blog, and twitter feed that I recommend everyone should subscribe too. They had a great article in the Education Series yesterday about a teacher in Oregon who has transformed his classroom with creating free portfolios for his entire class.
Read the article here and start your journey!