In case you have not already seen it, Microsoft has finally released an official OneNote app for Android.
Market link:
https://market.android.com/details?id=com.microsoft.office.onenote
NOTE: You do NOT need to have OneNote on your computer to use this, but you
will need to have a Windows Live (aka Hotmail) account.
You can create, view, and edit notes in various notebooks, make photo notes, and checklists. The app will sync your notes to your Windows Live SkyDrive account.
If you
do have OneNote 2010 (it won't work with 2007) you can set it up to sync those notebooks to your PC.
If you
don't have OneNote 2010, you can
still edit/create notes on a PC using the web version of OneNote.
I highly recommend the full version of OneNote 2010. It is VERY powerful, more so than Evernote. It is the one MS Office program I use more than any other.
Now that I have the OneNote android app, I will be getting rid of the various other text apps I use (Note Everything, Evernote, SpringPad, etc).
ATTENTION: Just so it isn't a surprise, the app in the market is free, but only up to
500 notes (but really, that's a lot of notes!). Once you get past 500, you will have to make an in-app license purchase for $4.99 (US) which gives you unlimited notes.
To put that into perspective, Evernote charges $45 per year in perpetuity for a premium account (and offline access to non-cached notes). It's also a hell of a lot less than buying the full version of OneNote for PC, and since you can use the OneNote web app for free, it's a pretty good deal.