Everybody knows that Change is coming. So, let me help you guys to experience the change. Yesterday, Ubuntu team has announced Release Candidate for Ubuntu 10.04 LTS (Long Term Support, Updates up to 3 years) for Desktop, Servers, Cloud Computing and Netbooks. There would not be much change in Release Candidate and Final Release of Ubuntu 10.04 LTS. Please refer the release notes for further information. Now, time to upgrade, I am sure this would be adventure ride for novice Ubuntu user.I used to do this upgrade during BETA cycle, sorry for being late.
Note: This article will help you to "Dial" your USB CDMA modem with Network Manager in Ubuntu, Assuming it's already working fine with wvdial. If you are modem is not detected or working by wvdial, then it's problem with Modem Detection in Ubuntu, if this is the case, then this solution is not for you.
Update: If you are on Ubuntu 10.04 LTS (Lycid Lynx) Beta - 1, please test ModemManager  and submit your response here , your feedback would help us to push this package to final build.