Samsung confirmed in a blog post yesterday that the original Galaxy S smartphone and its 7-inch Galaxy Tab tablet would not receive the Android 4.0 Ice Cream Sandwich software update due to complications stemming from the custom TouchWiz user interface skin found on the two gadgets.

The problem is based upon both ICS and TouchWiz being hungry for computing resources, and neither the Galaxy S phone nor the Galaxy Tab tablet sport sufficient RAM and ROM to run TouchWiz alongside the demanding Android 4.0 operating system. The argument may come as a surprise to some, considering the Nexus S that is getting an ICS update runs the same 1GHz Hummingbird processor/RAM as the Galaxy S handset.

On the other hand, the Galaxy S does have to accommodate for an additional custom software offering versus the stock Android experience on the Nexus S device. Samsung, on Tuesday, published a list of devices eligible for Ice Cream Sandwich upgrade, and it includes the Galaxy SII, Galaxy SII LTE, Galaxy Note, Galaxy R, Galaxy Tab 10.1, Galaxy Tab 8.9, Galaxy Tab 7.7 and Galaxy Tab 7.0 Plus.

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