Today Google officially took the wraps off Jelly Bean, the next evolution of its mobile platform and while it's not quite the revolutionary shift that was Gingerbread to ICS, it still marks an important improvement for the ecosystem.

ENGADGET: Jelly Bean, Android 4.1 revealed by Google, rolling out in mid-July

The new OS, which is the most important part of the product, isn't an evolution of the old BlackBerry platform.

WSJ: BlackBerry Z10 Review: BlackBerry Reinvents Itself to Compete With All-Touch Smartphones

During the spring (Q2 2012), the roadmap claims that Microsoft will release Tango, the next evolution in the Windows Phone platform.

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