In either case, I'd like to encourage you to pop over to Rod's innovation Creators blog to answer his three simple questions (actually you only have to answer two).
Do you use Notes? If so, how do you like (or hate) it?
Do you use Outlook? If so, same love/hate question.
If you got to choose, what would you have your company use? Notes? Outlook? Web mail?
Feel free to express yourself in Talkback too.