[a_c_s]

I use SPB and it has worked flawlessly for me on the Touch Pro...I also started using Activesync over the air to sync to a dummy gmail acct that I use exclusively for contacts and calendar backup...works great and the benefit is A) it's free, and B) you have access to your most important data anywhere with an internet connection...with the others, you need access to either your phone/SD card, or your home PC where everything is backed up...gmail, like another mentioned in this thread, is in the cloud...