Apple to apple comparison:
Yun:
Analog Input Channels:12, 10 bit ADC channels
Analog Output Pins:0Tian:
Analog Input Pins:6, 12-bit ADC channels
Analog Output Pins:1, 10-bit DACTian is far better than Yun if you need analog I/O.
-->I wonder where this information is comming from..... There are some articles about it like this one or this one. But at arduino.org they write:
Analog Inputs: A0 - A5, A6 - A11 (on digital pins 4, 6, 8, 9, 10, and 12). The Tian has 12 analog inputs, labeled A0 through A11, all of which can also be used as digital i/o. Pins A0-A5 appear in the same locations as on the Uno; inputs A6-A11 are on digital i/o pins 4, 6, 8, 9, 10, and 12 respectively. Each analog input provide 10 bits of resolution (i.e. 1024 different values).
And theres nothing about an analog Output.....