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It's no surprise that the new-and-re-improved Hewlett-Packard has come to the conclusion this afternoon, under newly-minted President and CEO Meg Whitman, that it will not spin off the Personal Systems Group (PSG) division responsible for producing PCs and tablets. This move was announced after the close of stock trading Thursday afternoon.

But one of the first questions analysts asked during an HP investors' press conference this afternoon was the fate of its tablet unit. Today, Whitman made it absolutely clear that any tablet PCs HP may produce in the coming year will center around Windows 8, not the webOS platform that HP acquired in the Palm buyout just over one year ago.

The days of enterprises choosing one smartphone vendor appear to be ending. Forrester reported last year that 60% of enterprises support employee-owned smartphones, and mixed environments are becoming the norm.

BlackBerry was still the most popular enterprise smartphone operating system as of Forrester's Q1 2010 survey. According to Good Technology's numbers, iOS is growing the fastest by far. But with more enterprise tools for Android on the market - including new tools recently released by Zenprise and the forthcoming offerings from Motorola and SAP - Android is poised for strong growth.

Yesterday Good released its first ever quarterly report on enterprise mobile device activations. In August, we reported that the iPhone 4, released on June 24, was Good's top most activated device in by the end of July. Good's first quarterly report confirms what we reported in August - iOS remains the most activated device among Good customers. Good doesn't support BlackBerry, which according to Forrester is still the most popular enterprise smart phone OS. Here's Good's top ten: