Hi, thanks for your feedback!
The code from your link use the same CRC8 function (modified function from the OneWire library) as I do.
I recorded the traffic with my occiloscope and the CRC bits looked ok what I could see (compared my output with the picture from http://lucsmall.com/images/20130507-08-worksheet.png
when I used the same temperature/humidity).
You are right that the Tellstick Duo don't care about the CRC bits but I send them anyway if you want to recive the data to a weather station.
By the way I have updated the library, fixed some major bugs (now handle negative temperature correct and changed some datatypes).
Also uploaded a new shetch that use a DHT22 sensor.
The row with the "OSCCAL " need to be removed or changed (use tinytuner to get the correct value if you use the internal oscillator).
My sensors (three) has worked flawlessly since I made them