Latest Motorola Defy XT user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; U; Android 2.3.7; en-us; XT555C Build/V1.67D) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1	Android Browser	Android 2
Mozilla/5.0 (Linux; U; Android 2.3.7; en-us; XT557 Build/V1.65K) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1	Android Browser	Android 2
Mozilla/5.0 (Linux; U; Android 2.3.7; en-us; XT556 Build/V1.70B) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1	Android Browser	Android 2