[buddydvd]

You can track reviews for an iOS app by subscribing to its rss feed.

    http://itunes.apple.com/us/rss/customerreviews/id=[your_apps_apple_id]/sortBy=mostRecent/xml

For example, here's the RSS feed URL for the Facebook app.

http://itunes.apple.com/us/rss/customerreviews/id=284882215/...

[joshaidan]

This is what I do!