ScientiaMobile

Mozilla/5.0 (Linux; U; 2.2; zh-cn; sdk Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
http://bit.ly/1b5AYCG
is un-identified, but should be nexus-1 device

And currently translates to 'Android SDK':
Mozilla/5.0 (Linux; U; Android 3.2; en-us; sdk Build/HTJ85B) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13
http://bit.ly/1gJTm89
should be Motorola Xoom.

Hi there,

It looks like the UAs are taken from the device emulator in the Android SDK, rather than the device itself. For reference, the Nexus One's UA looks like this and the Xoom's UA like this.

Cheers and thanks,