The June date is based on how existing Authorized Campus Stores have started to clear out Apple computers at cost, which an example being the store at the University of Victoria (UVic). Once supplies have sold out campus stores will only sell accessories and peripherals.
Explicit leverage is money or assets contractually borrowed for a fee. As a hedge fund investor, it is important to know whether your hedge funds are using these types of products and how much risk they add to your portfolio. One way to figure this out is by reviewing the often overlooked audited financial statements.
Leverage is actually a very efficient use of trading capital, and is valued by professional traders precisely because it allows them to trade larger positions (i.e. more contracts, or shares, etc.) with less trading capital. Leverage does not alter the potential profit or loss that a trade can make.