I came across Chomp, an iPhone app for reviewing apps. It’s a social networking app where you review apps, then you can recommendations for apps that may be of interest based on your likes ands dislikes.
I am giving it a go with reviews for apps for young kids. See http://chompapps.com/alan.kent for my reviews to date. It’s certainly pretty quick to do a review – just say like/dislke with up to 60 chars of comments.
Not sure how good the recommendations are, but it’s certainly been quicker to get reviews out there and others can see the apps I have looked at. Hopefully my list of reviews is useful to someone.