i would do the following...

1. install the community SSU
2. install the diabloturbo modules
3. install telescope app launcher
4. install and switch to the diablo5 theme
5. install advanced system UI
6. install openntpd, openssh

They are the apps and updates which wil bring the device as upto date as possible and as close to maemo5 as it can be.

After that, it depends on what you want to do with the device

most of the software is mature and stable now.