MyTweeple - the creator of this site wants better contact management in Twitter, their site enables you to manage who you follow and who follows you, any changes you make reflect on Twitter. There is also a place to Tweet (Temp Tweets) when Twitter is down, a bit like Twiddict. Also check out Twerp Scan.
TwitterSnooze - when someone you follow is tweeting too much, put them on snooze
Twit 2 SMS - create a widget for your blog where visitors can send you an SMS that is delivered as a Twitter direct message
Twisky - To display a users latest tweets enter their name in the “Who” box. To display latest tweets about a keyword enter a term in the “What” box. Combine these together to display who is saying about what.
eg. this is what I’m saying about Google Reader Who: johnt What: Google Reader
It’s based on the Summize Twitter search engine, in the advanced search I did the exact same search.
eg. This exact Phrase: Google Reader From this Person: johnt
My Tiny Jesus - Jesus blurting random Tweets