I have just finished building wvdial and a front end for it called pyWvDial, both for VL-6.0. I have to admit I don't know much about these programs so I will count on you to test.
So let's see how things are going on your list...
1) wvdial. Just built...give it a couple days.
2) Download Accelerator that monitor browser download and cliipboard (like KGet). d4l, Same as above.
3) Some more nice games. Give me some ideas. Have any favorites, I'll see what I can do. If you enable testing in the gslapt repositories and if you have a graphics accelerator, openarena is a recent new addition.
4) A nice desktop sidebar. Any suggestions, or examples?
5) OpenOffice It's in the repostitories, just gslapt.
6) Amarok/Rhythmbox Both in gslapt repositories.
7) .deb .rpm convertor and installer. You can use rpm2targz, rpm2tgz, or /sbin/deb2targz at the command line.
/sbin/deb2targz is also part of thunars custom actions.
Give me a couple games and I'll see what I can do. Some examples of what you mean by a sidebar, would help as well.
Here is an example of how you can install a deb package.
http://www.opensourcebistro.com/Tutorial/VL60/11.Network-apps/gizmo/gizmo5.htmThis will only work if the deb package follows the linux filesystem standard and dependencies are satisfied.
Ken