Chief of the TWiT podcast network moves over to the Jaiku service due to confusion of TWiT and Twitter names. From his blog:

"The problem is the name. I wish to heck he’d named it Tweeter, or Tooter, or anything but Twitter. Twitter is so close to TWiT that I’m afraid it’s really confusing. And it hasn’t helped the confusion that I’ve been such a fan of Twitter. I’m sure half the people there think we have some sort of relationship. But we don’t. And the proliferation of programs like Twitbox and sites like Twit This are not helping things much. So let me repeat…

Twitter has nothing to do with TWiT.

And, I’m afraid, I can’t have anything to do with Twitter, either. It’s just fueling the confusion. Fortunately, there are several similar services including Groovr, Dodgeball, and Jaiku. After a cursory glance at all three Jaiku seems to have the best mix of features for me (I’m too old to be groovy, or hooking up) so I’m moving to Jaiku. My handle is ChiefTWiT. Hope to see some of you there."

We will wait and see if there are any further differences between them on trademark claims.