I could write a novel, but I'll try to narrow to just a few.
- Calcmoolator: Free app with 35 financial calculators, from extra car payments to work vs. unemployment.
- Pay Off Debt: If you're using a debt snowball, this app keeps track of it for you.
- CNN Money: Keep up with the latest financial news.
- Amazon Kindle: Not necessarily finance related, but you can download and read a ton of free ebooks. :)
- BlogPress: I prefer to post from an actual computer, but sometimes I start a draft while I'm lying in bed and edit it later on the computer. Good for "breaking news" kinds of posts!
Welcome to your new addiction!