Enterprise? Not yet...
"Enterprise buyers who've settled on Windows Phone, and who are looking for a good, low cost, and reasonably future-proofed fleet phone should take this very seriously."
Er, no, actually. I've just finished a back to back test of WP8.1 against Android and found serious deficiencies in the Microsoft offering.
1. Lack of SMS archive facility rendering business texts unretrievable for data retention / evidential purposes.
2. Lack of call recording capability, again rendering Windows Phone useless for audit and data retention.
3. Lack of MS Exchange search capability. Frankly, inexcusable for a Microsoft phone.
All of the above examples are functions provided by Android and, years ago, were available on Windows Mobile. I warned Microsoft in writing four years ago that if it didn't bolster its mobile presence for the enterprise space, it would open up its server and desktop footprint to attack. It's proven to have been a very costly error.