That GOC theme is hot. Is that a theme you have to install via an ssh session or what?
absolutely not, it's available is cydia. It's called Glass Orb. There are two, well 3 versions, glass orb, glass orb color (goc), and glass orb color pro.
The pro version is 2.99 but you get all the icon updates through rock, otherwise you have dig for them. Whatever the GOC regular comes with is what you get, the developer only releases icon updates for the pro version. If you don't mind digging, there's a thread on modmyi.com that is over 200 pages long with icons for it that the developer started for requests, and the new icons are posted in the thread. He takes those periodically and throws them in a packaged update on rock for the pro users. He does it rather regularly as well. I just bought that theme about 2 months ago and I've received about 4 updates for it, so he's pretty good about it. There's TONS of icons with the pro version, I highly recommend it.