I registered bogusapple.com after a buddy of mine posted a screenshot of Little Snitch prompting iTunes' access to the domain. All credit for finding this snafu goes to gentmatt, and my bank account for allowing me the ability to frivolously buy a domain.
I don't believe that accessing this domain is built directly into the compiled code of apps, since (in my opinion) it did not happen close enough to a software update. I believe it is just some kind of a typo (bogus.apple.com?) for something used as part of the web page views that comprise the iTunes and the Mac App Store apps. I fully expect that this problem will quietly go away once they deploy new versions.
I picked up the domain just to see if any particularly exciting web requests were being made, and it's been fun to watch user agents, but as soon as Twitter, news sites, and forums got wind of it, it's pretty much impossible for me to discern any meaningful traffic anymore.
I suppose I could start filtering any requests with a referer, or ones not coming from *.apple.com. We'll see.
It's been a fun 13 hours.
Any questions?