I’ve been reviewing the Build keynote from this afternoon and I’ve stumbled onto something that is a little bit mysterious. During Antoine Leblond’s developer address during the keynote (around the 48 minute mark), he used a Surface Pro machine to preview new Visual Studio development tools on power consumption.

At face value, this information isn’t particularly shocking. However, when he revealed a demo app’s power consumption, Visual Studio claimed that the app would last 9.17 hours (that’s 9 hours and 10 minutes) on battery- a feat that the current Surface Pro would definitely not be able to achieve with current estimates.

Though battery estimates have never been an exact science, this number is definitely out of the realm of possibility for the Surface Pro, which can at most last for a paltry 4 hours. The Surface RT, despite stellar battery life, is definitely not equipped to run Visual Studio. This estimate leads me to believe that Microsoft just teased the new Surface Pro with Haswell, right in plain sight.

I’ll update this post accordingly should I receive anymore information. The video in question is after the break.