For those looking for a wireless solution to back up there information such as contacts and calendar entries I think M$ active sync exchange is the best way to do so...my website is hosted by someone else but I use Google Apps for my emails and basically EVERYTHING LOVE IT !!!
Same thing with my gf she uses Google (sync) and we connect to active sync after every flash no software needed, plus the contacts sync 2 way so double entry of anything is close to zero.
Source:
http://www.google.com/support/a/bin/...&answer=135937