This is coming together nicely, Bazz. I like your second version the most. The front especially - there's much more play with colors.
IMO though you can warm up the yellow overall tone of this cover - right now it is kinda pale. I'm not fond of using the same pic twice in a cover, so I'd change the back one., coz I think waht you did one the spine is well - spot on.
Logos, legal ad credits should be darker - that will make them stand out better. I think You should try out aligning you special features.
I like those screens. That looks good next to the spec features...
Just my 2.. Hope it helps ya out (IMG:style_emoticons/default/8834.gif