What is it? If its a logo consider how it's going work across all possible formats and what is the meaning behind it, apart from the obvious reference to the name ' sphere ' how does it let me know it's publishing? I also find the publishing part of the text hard to read and when reversed out I think it maybe totally unrecognisable. I also think the font may need changing from something quite so futuristic.
There's an off-the-peg feel to the sphere and the font's more techno night at a local club than publishing in the broader sense (is it the same one as the business card design you posted? - don't get too attached to stuff you like the look of for reasons unconnected to your brief).
Interrogate the brief and have another go: even if you don't have a lot to go on, the concepts of 'sphere' and 'publishing' open the gate to numerous interesting possibilities.
This is what the client specified, this is a website and building sign the logo is more simplified for everything else. That's what they wanted. I've never done 3D style balls before so this was a first. At the moment they have a 2 dimensional thing which looks awful. It's an independent film/games company. Specialize in war/sci fi. It's not up and running at the mo.
Interesting, if the client is happy yet your not.. then what do you do? Take the money and run? I always make another version that in my mind is better and that I usually show and hope the client will like more.