Top Tweets in Trends for 3rd Party Twitter app

I wonder why 3rd party Twitter apps like Hootsuite, Seesmic and even Tweetdeck, which Twitter bought early this year do not show Top Tweets in Trends. I find this rather inconvenient because I want to share my retweets on Facebook without sharing all of my other tweets. Surprising that only Twitter main app can do so. Adding Trends to a column seem to be impossible at the moment too. Only adding a single trend is available now which is a big boo-hoo. Is Twitter keeping the best features for themselves to attract users?