Many members of an Ubuntu Community that I am a member of on Orkut seem to have problems getting their GPRS connections working. Someone found a tool call GPRS Easy Connect which seems to work well for some, especially in India.
This application is quite old and is not undergoing further development. The author, Simon Péter, informed me that he is rewriting the application from scratch but it will only be done around the end of 2008. Also the new version will work perfectly on Ubuntu as this is the distribution he is currently working on. The currently available version was built on Mandriva and requires a few fixes to get working in Ubuntu.
To make life easier for the newer users, I built a .deb package that incorporates these fixes for Ubuntu Hardy Heron. As far as I know, it has worked for at least two people and I thought I'd put it up for download for the benefit of others who would like a simple and easy solution.
The obligatory disclaimer: Use at your own risk!
Download GPRS Easy Connect - gprsec_1.0.1_i386.deb