I've just found your question. I've got about 30 temp sensors and some switches set up on a 1 wire network. I'm planning to control my complex heating system through it using Mango.
Getting it to be reliable is a right pain. Its very sensitive length and hoe the sensors are added. This article is very helpful
If you want to do some testing to check the system is working either use the dallas software or LOGTEMP by mr soft both free
Here's my public view page http://www.bacwak.net:8080/public_view.htm?viewId=8
Which is a bit scrrewed at the moment as i have been playing with dials and buttons on it
What switches are you using and how do you have them connected? Powered, parasite, pullup resistors, etc? The reason I ask is that I have switch module D2P from EDS (DS2406 based). Mango sees the switch (but only one, it should see A and B since it is a double I/O) but it does not sense the switch staus (binary change). I am using this on serial input and parasite mode. Interestingly enough I have the same exact problem with LogTemp. However, Dallas/Maxim viewer sees status changes perfectly.
Anybody else, feel free to chime in.
BTW, love the Mango software so far.