Up to 99% accurate, and often more accurate than typing / Fully compatible with VMware Fusion
Customer Rating: 



Summary: Works great with bluetooth and Atom netbook
Comment: I finally received by new Dragon 10 and the Bluetooth bundled ear piece. It took a long time as nuance did not send me any kind of tracking number so I missed the shipment. However, it was well worth the wait. I have to admit I've only had this for a few days so I have not experienced the failure of the USB inset the previous viewer has, perhaps I will over time. However, I was thrilled to see how well Bluetooth worked since I was never able to get it to work very well with version 9. Even more impressive, instead of running this on a quad core processor like I did on version 9 I am running this on an Acer netbook with the Atom processor and it works flawlessly, I am very satisfied so far. I wish that I could buy plantronics Bluetooth earpiece separately so that I would have a spare, I never thought Bluetooth would work so well after all the problems I had with various Bluetooth devices in version 9.
Customer Rating: 



Summary: Amazing
Comment: I have to say that, of all the computer applications I've used over the years, this is the most amazing. It installed without problems in a Vista environment and after "training" the software by speaking, I was off and running. It's hard to believe that, even when I speak fast, it keeps up. Of course, it not 100% accurate in recognizing words but does a much better job than I ever expected.
Customer Rating: 



Summary: Beware the Bluetooth, and the treacherous Tenth Dragon.
Comment: I have just upgraded from Dragon Naturally Speaking 9 to 10. I am happy to report that so far, after a couple of days trial, this upgrade seems to have been well worth it in terms of increased accuracy. (BUT SEE LATER!) At the same time I was tempted into purchasing the alleged integrated Calisto Bluetooth microphone, attracted by the special price, the convenience of a wireless headset, and the promise of increased accuracy.
However, I have run into two problems, either of which makes the Calisto currently useless. In the first place, the Bluetooth insert device for the USB port cuts out after an hour or two of usage. Its function is only restored after completely rebooting the computer.
The second problem is far more serious. Once the Plantronics Calisto is activated, Dragon Naturally Speaking demands that you " prepare this user for dictation". You would probably be encouraged to note that the accuracy level of the new Calisto is rated very high. You are then required to read a passage from a selected text. When Dragon is satisfied with your reading, it will present you with a dialogue box telling you to wait while your user files are being adjusted for your reading. In my case my computer then simply hung up, and could not be started up again without a complete reboot. Two different Dragon phone techs attempted to solve the problem unavailingly, the second one promising I would get a call back from a top expert capable of solving the problem. No reply over the last two days, and similarly no reply yet to an email I sent them yesterday informing them of the Bluetooth insert failure.
I started dictating this review with DNS 10, but, sadly it first began reverting to a habit Id seen before with DNS 9, that is, starting up a new sentence or phase one letter too early. Finally, it gave up altogether and refused to accept any dictation from my old and otherwise commendable Plantronic DSP 400 mic.
So I can hardly recommend purchase of any of this Nuance equipment right now unless you're willing to pay good money for what amounts to a rather unpromising Beta version. But if they had waited to get the bugs out first, they might well have something really to get excited about. Maybe wait six months, a year?
Lesson: I should have paid attention to earlier negative Amazon reviews. (I trusted Nuance on the basis of good experience with earlier versions.)