A number of forthcoming top-end smartphones are set for a royal showdown in the coming months... and iPhone and Android fans world over are getting restless, courtesy delayed releases citing various reasons from hardware redesign to Ice Cream Sandwich upgrade issues.

What this means for users contemplating smartphone upgrades, particularly with irresistible line-ups in the offing (including the most sought-after iPhone 5 and Samsung Galaxy S3), is that they might regret a choice made in haste.

Start the slideshow to see the top 8 most anticipated smartphones of 2012...

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