Good night to everybody, I managed to run MySensor in an ATTiny 85 micro.
Unfortunately, i don't know too much about Arduino Bootloader and how this work,
then I miss space in program memory...
Now I can only make a Themperature sensor and I/O device but I miss space for
configuration program.
If somebody can help me...
Thanks and sorry for my bad eglish.

I share MOSI with 1-WIRE bus, I put in sleep mode the radio, then I read the sensor and after I send the value...
Unfortunately I can't use only 3 pin for the radio module because I work with a botton battery (I can't swith off) and I need TX and RX