The android browser is identified as safari browser. But in fact it is not safari. Maybe you will change this. Here is the user agent identification of the android browser on my HTC Hero mobile:
"Mozilla/5.0 (Linux; U; Android 1.5; de-de; HTC Hero Build/CUPCAKE) AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2 Mobile Safari/525.20.1"
Added/Fixed in CVS tree. Will be available in next version.