I implemented a similar idea a few weeks ago and called it http://www.tweviews.com I like your implementation: the RSS feed and the grouping of items being rated into the Hot Stuff category are both cool.

My set-up is similar: reply tweets sent to @tweviews However, I send them on as normal tweets to the tweviews Twitter account. This means that if people want tweviews, they can just follow the Twitter account.

Content-wise, I was shooting for a different slant: I also have a cron-job set up that pulls in the reply tweets, but I moderate them and only send on the good ones.

I'm still tweaking the format of the tweviews. Currently, it is "@tweviews thing, artist ... review" I display the latest five tweets in a sidebar on my blog (link in my profile) and automatically link the "thing, artist" part up to a Google search.

Anyway, in summary, I really like Twitterate. Nice job.