Evernote is completely free but they do have a premium product which allows for 500 Mb worth of uploads to Evernote. The free product is limited in how much you can upload and sync but depending on your needs it may be all that is needed. In the first day of use though I uploaded about 50% of my free quota. So, I went ahead and purchased the Premium product, which by doing wiped my free quota and gave me the full 500 Mb. I paying $5.00 a month, only because I want to see how much usage I get, instead of the $45.00 a year plan if I end up using it as much as I think I am I'll switch. Also, with the premium product access is via ssl. I don't know why they don't do that for the free product for privacy issues but it's not my product.
What I really like is that I can use my iPhone to take a picture of something and store it on Evernote as a snapshot note. I can also store audio notes as well as create text notes. And I even can access the pictures on my iPhone Picture Gallery and create notes from the photo. This is the same as Snapshot Note difference is Snapshot the picture is the note. The Saved Photo Note, the picture is an attachment to a note and details can be added to give more info about the picture itself.
A final feature is that I can share my notebooks. By using the desktop application, I can designate if a notebook is private or public. Making notes public is great for sharing notes via the web with friends. I just don't know how much I'm going to use it. What I do think I'll end up using is the email a note feature. I prefer that method if I'm going to share information with someone.
All in all this is not only a crazy way of taking notes but it's something that I've wanted to have that incorporates all different aspects my digital life. I'm just happy that I can access all the same data where ever I happen to be. I'm thinking that this is going to be an extremely useful tool.