Funny thing about trademarking a name and trying to utilize that trademark against a URL, can't be done. If so, MicroSoft would have nailed people left and right for infringement upon IE (can we say IE7.com and IE8.com) as well as several other websites that utilize trademarked MS product names LOL. Several other companies have tried this as well and failed.
As for Twitter TOS and developer rights. Nope, can't sue for voilation of a TOS on a public API either. You can suspend "suspect activities" and revoke developer/company rights but you can't actually file suite on a TOS violation of this type. Lots of statuatory presidence on the subject. On point 3, 80% rule along with the fact that you have clearly labeled in valid font size the non-affiliation with Twitter again negates this point in most cases. Actually, about the only thing they could get you for would be Slander/Liable if you were spreading bad publicity about the company that was un-true. In that case, they could get you for everything your worth LOL. Then again, being a public entity they would fall under the same laws as the movie stars and other public figures and would basically have to suck it up in the end. - Jeremy
