It's good you haven't used solid colours--you have faint patterns hidden within the two boxes. The faint silhouettes go well with the
zoomed-up Windows 95 logo in the top box. I knew those squares looked familiar.
My favourite part is the font used for "Smart People"--it catches your eye.
If the cover isn't set in stone, then I recommend changing the colours; red and violet-blue do not go well together.
. . .
Why not use your blog's colour scheme?
I always liked your blog's colours. Plus, people will subconsciously connect the book to your blog, and buy it out of recognition. (Or vice versa, they'll visit your site and find it familiar.)
I also think you should put Dweep on the cover. He is your Favicon, after all. Maybe he could go on the spine?
