Android application dev on Nexus 7

[allelopath]

I'm trying to run an Android application in Eclipse on a Nexus 7 connected to a Windows 7 machine.

I've attached the Nexus 7. If I go to My Computer, it lists Nexus 7 (and I see Internal Storage 11.8GB free of 13.2GB). I have USB debugging enabled. I installed Asus Nexus 7 drivers from here:
http://support.asus.com/Download.aspx?S ... &p=20&s=16
Then I do <sdk>platform-tools\adb devices and it shows:
List of devices attached

(nothing else, ie no device attached)

So I do this:
adb kill-server
adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached

(Still nothing)
What do I need to do to?

[S.Prime]

Have you unlocked your bootloader on the Nexus 7? If not you can unlock it with the RootToolKit in this topic Here then your Nexus 7 should show as an adb device. Don't forget to check debugging mode in developer options.