Cool twitter app idea :)
Twitter client that allows you to read posts via api BUT allows you to block certain keywords eg people/accounts you dont want to see retweeted. eg block me from seeing any twitter posts with the word "Fox News" in it.
Though i think my next Twitter app idea will be a twitter app that allows you to follow people who you dont want to let know that youre following them eg, you get alerts when they post something (maybe even paid version allows you to get alerts for their posts with certain keywords).
What do you think?