As a mobile platform, the EVO 4G's Android foundation is still an infant -- well, okay, perhaps it's a tweener -- but in its two-odd years in the public spotlight, the list of truly revolutionary devices to use it has been a significant one: the G1 for being the first to market; the Nexus One for ushering in a new (and subsequently killed) retail model; perhaps the CLIQ for introducing Motorola to the platform or the Droid for bringing