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Wirelessly posted (Apple Communication Device: Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_0_2 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5C1 Safari/525.20)

It appears Apple condone this type of tactic.
 
I think the server that was being overloaded is the music streaming server that Simplify uses to stream music from user's computers to their iPhones. That is something Simplify has to pay to maintain and upgrade.

Bingo, you have it. Apple hosts the app, Simplify Media streams through their servers. :D
 
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