The lack of subnotebooks continues to be my biggest disappointment in Evernote. I've been following this program since it first came out, and have tried to make it my primary note taking program. However, the lack of a multi-layer organizational system (folders/sub-notebooks/sub-notes) is a big enough problem for me that I keep going back to OneNote. I do love this program. The ability to use it on multiple platforms (windows, mac, iphone) and automatically sync your notes between them is fantastic. I believe this is Evernote's strongest feature. Furthermore, I'm a firm believer in the need for a tagging system and good searching capabilities in a note program. However, I find searching and the use of tags to only be useful some of the time. Other times, you just need the ability to organize all of your notes in something other than a simple one-level structure. Looking at all the requests for folders/sub-notebooks on this forum, and the admins' responses, it appears that this is a relatively low priority feature, which is too bad, because I would be more than willing to spend some money on Evernote if such a feature would be implemented. Until then, I'm stuck with OneNote (which I've already spent a lot of money on for 2003 then the 2007 version) and its inability to easily sync and use across different platforms (it's possible, just not nearly as easy and elegant as Evernote). On the plus side, a couple of days ago it was announced that someone is working on a OneNote application for the iphone (not just concept, they are supposedly soliciting beta testers in the next couple of days), which would definitely help on the sync aspect. My plea to Evernote - please seriously consider implementing folders/sub-notebooks. Thanks