Rii
pros:
Backlit, those who like to watch movies animation Heidengxiahuo, it is suitable
Bluetooth, IVT BlueSoleil driver to get a universal Bluetooth adapter can be
With F1-F8 keyboard
Touch pad, if you like, personally like the touch points
Built-in battery, usb charger, but let my sanyo enloop ii battery useless（rii mini wireless keyboard）
cons:
Touch pad location is not good, the sensitivity is not high, can not be adjusted
Built-in battery, battery scrap it to waste, did not change that mind their own
Actually there is no direct delete key, pageup, pagedown, after the two better(rii mini)
Lenovo
pros:
Ergonomics to do good, comfortable, hands with the words
Trackball is useful, sensitive, easy to use with the right mouse button
Multimedia keys are independent
Do not waste my sanyo enloop ii battery, 2 AAA batteries can be used for a long time
cons:
No backlight
No Fn key
Poor sensitivity of individual keyboard keys
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