Twitter can’t seem to get their act straightened out with an integrated retweet function.  Granted, retweeting was not an official feature and came from the community.  Still, after countless 3rd party applications found a way to integrate retweeting into their apps, Twitter gave it a try last week.

And then they removed it.

I’m not so sure that people really liked Twitter’s native retweet function to begin with.  It simply wasn’t flexible enough, as it would not allow you to modify the message prior to retweeting.

Skipping ahead to yesterday, Posterous announced seamless retweeting into its already to use lifestreaming software.

Posterous has been on a tear, and fills the middle ground between microblogging and blogging.  Popular bloggers such as Steve Rubel have sworn off blogging in favor of this nimble utility.

Does that mean that Posterous will overtake Twitter? Not likely anytime soon, they aren’t in the same league:

Still, it makes you wonder if Twitter will remain top dog forever, as more of the social web aims for a piece of the digital pie.