I Want to Download ann App That is Free and is for android 1.6, i have android 2.1 and it says its not compatible Possible Duplicate:
  Why are some Apps on the market incompatible with my device?  




Thats it.
I Wanna Download This App
https://market.android.com/details?id=com.projectx.android.ScouterLite&amp;feature=search_result

And i Have an ZTE Racer With Android 2.1

What's wrong?
It could be all kinds of things, Google won't (yet) tell.  I'm annoyed about that myself (having bought a Samsung Galaxy 5 two weeks ago).  Posted an item to the Google's Android Help forum, but no official response (yet...).

I'd be surprised, though, if it was the carrier.  Too low camera resolution sounds more plausible (I suspect that's why I can't install Google Goggles, the Galaxy 5 camera does 2 MP only).

But... only the developer of the app could tell you which requirements they specified in the manifest.

A bit of background: an app developer can specify features her app requires.  Like "device needs a camera".  Or "device needs at least X x Y screen resolution".  The market checks this list against the device you want to install it on, and... in your case, they don't match.