Hi everyone,
I also tried the code from
http://www.rkner.at/home/news.avr.rfm70.html,
but I found out that it is not really Arduino compatible.
So I ported my own RFM70 driver from the original HopeRF example code.
It is working, but it is slow because I am not using the Arduino SPI driver.
If you are interrested tell me and I can post my code here.
Fred