I have been using soonr.com for over 6 months. They have a neat software, which installs on your desktop, allowing you to share your files and pim info and you can access to them via a web browser. PDA and mobile phone browsers are supported as well. One neat new feature is the ability to make Skype calls. Using the Skype on your desktop, it will call/SkypeOut to the number you want and will also call you on your mobile phone and connect you. If you are in Canada or US, it means free national calls for you. (you’ll of course still use your minutes, but won’t be paying extra charges). Very