While there are a handful of note taking apps in the Windows Phone 7 Marketplace, some prefer audio notes to serve as a reminder. Enter Audio Phone 7 from Redtalon.
Audio Phone 7 is an ad supported voice recorder for your Windows Phone. When the application launches, it goes directly to the recording page of the hub. From there you simply type in a title for your recording and record away.
Audio Phone 7 also includes pages to view your past recordings as well as links to other applications by the developer. The only drawback I could see while giving Audio Phone 7 a quick test is that you have to enter a title to the recording. If your on the go and need to record a quick voice memo, you may not have the time to enter a title. Then again, you could always just type a few random characters.
Audio Phone 7 is a free application, allowing you to see for yourself if it's worth keeping on your phone. You can download your copy of Audio Phone 7 here (opens Zune) at the Marketplace.