Andrew at Retrovo Blog:
Maybe the “4” in the iPhone 4 name gives iPhone owners (34%) the false impression that they already own a 4G phone but the fact is Apple doesn’t offer a 4G phone at the moment.
Some call an iPhone 4 an iPhone 4G. 24% of BlackBerry owners were also confused. Thanks to AT&T, Verizon, T-Mobile, Sprint, and others the term 4G means jack. The only thing it means, most of the time: 4G is faster than 3G.
Maybe Apple should go back to calling iPhone simply iPhone, without the suffix nonsense.