Some waiting on iPhone improvements before buying
 

*Source: Reuters (http://ca.today.reuters.com/news/new...TING-COL.XML)*
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Apple Inc.'s upcoming iPhone is shaping up as this year's must-have gadget, but several perceived shortcomings are pushing some potential buyers to wait for an updated version.

Worries over the high cost, slow network speed, and battery life are deterring some customers from ponying up a minimum of $499 for the device, despite the buzz across the gadget-crazed landscape of tech retail.

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