CES 2012, BlueStacks (known for Andoid App Player) announced that they are coming into Windows 8. Which means, they are going to bring 400,000+ Andoid Apps into Windows 8.

Originally Posted by CNet

At the 2012 Consumer Electronic Show here today, BlueStacks revealed a functional demo that runs Android apps of all kinds on Windows 8. This follows last year's debut of the software and release as a rough alpha for Windows 7, but it comes with a piece of unexpected news. The software maker has been in talks with hardware manufacturers to ship the program preinstalled on Windows 8. A beta of the Windows 7 version was also cagily given a release date of sometime before the second quarter of 2012...

BlueStacks goes Metro with Windows 8 | Crave - CNET

Originally Posted by TheVerge

BlueStacks is planning to bring over 400,000 Android applications to Windows 8 this year. The company originally released its "App Player" software for Windows 7 in October, but it's now compatible with Windows 8. Android apps will simply run as desktop apps under Windows 8, very much like the previous Windows 7 app, and without any porting required. In fact, BlueTracks claims it is the only program worldwide that can run native ARM-based or x86 Android apps on Windows PCs and tablets. Android's Market just hit the 400,000 mark, and BlueStacks hopes to bring the majority of them to Windows 8...

BlueStacks promises 400,000 Android apps for Windows 8 (hands-on video) | The Verge

Very interesting

That is good news for Windows 8.