Usability 
I recently discovered Fone Frenzy via tankgrl who's latest "Talking with tnkgrl" video podcast features the site's Tony Peric as co-host.
Fone Frenzy is a a general mobile news and reviews site something like MobileCrunch, IntoMobile or Engadget Mobile. The difference is that Fone Frenzy is, as far as I can tell, entirely Tony's own work. He's an incredibly knowledgeable mobile technology fanatic who gives his own personal, unbiased opinions on the latest mobile news and writes in-dept, impartial reviews, often with video, of the newest phones and mobile services. Tony's a post machine too, cranking out a half a dozen or more posts a day when there is a lot of breaking news, like at CES this week which Tony is covering live of course.
And Fonefrenzy, like tnkgrl Mobile, is a Wordpress.com hosted blog so it's ad free and loads quickly on your phone thanks to Wordpresss', enabled by default, mobile plugins which automatically detect mobile browsers and deliver a full featured mobile formatted version to them.
Hasn't been updated since 2011