The requirements to source Apple products at wholesale are extremely high due to Apple's desire to protect their brand value. If you want to source these items wholesale, you'll need to fill out an application on Apple's website and be able to meet a minimum annual purchase requirement of more than $100,000 and provide 2 business references among other things. You can read the full requirements here: Link hidden: Login to view
Although there is no other way to legitimately source Apple iPhones, iPods and the iPad wholesale except through Apple themselves, you can source Apple accessories from a number of wholesalers and drop shippers. Here is a list of a few SaleHoo suppliers for Apple accessories: Link hidden: Login to view
(Don't forget you need to find the Wholesale section on these supplier's websites and either fill out an application form or contact them directly to get wholesale prices).
The other option to source Apple products is via liquidators. Liquidators can legitimately resell iPods, iPhones etc, but Apple won't honor the warranty for products sourced this way.
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Hopefully we hear from anyone who had the chance to deal with them and get a feedback.
Hope this helps.