Cool design, I like it!
It seems quite difficult now for users to find computer control apps though, how about a computer control segment next to the create, play, explor and staff picks? It would need a different name though, something that fits with the others (interact/take control or something like that, although interact may be misunderstood as some social tool set).
I as a developer of both the Mac and a Windows app, I preferred users seeing immediately which platforms the app ran on, as opposed to having a cursor move over the apps image to find out. I also think it's somewhat bare when the cursor hovers over a apps image and looks a bit like an error or some unwanted effect. Perhaps a second image could be inserted there.
I've noticed an issue in your platform detection component. It seems to detect Windows 8 as a platform for which AirInput as well as Blue Estate can't run on. That could be quite a nuisance for the developers which may lose sales until the bug is fixed.
Also the bug since the last update of not being able to edit comments seems to still be around.
I don't think I've ever had such a bad day, since my app launched two months ago. Since my app used to be on the front page, and now it's in the pretty well hidden computer controls. I'd have to say this new store pretty much ruins my ambitions for the future. I guess it was just a question of time until ones app drowns in the masses, which are rushing into your airspace (congratulations by the way!).
I do feel though, that computer controls are very important segment, and are being ignored inappropriately. But perhaps that'll be rectified someday ; )
Thanks