ok....

i will do a summary:

magicsim 23th:
- 007 switch ok (i ve got no negative informations)
- only one user can use 3G, rest cannot use 3G

magicsim 26th:
- some users cannot switch with 007 (me)
- 3G works

magicsim 28th:
- one user cannot switch (007) with a special provider card (three GB), with other cards it works
- 3G works

GDI3SG:
- switch possible, but sometimes it does not work. sometimes you can fix that problem with a terminal command
-3G possible


i know no other adapters who work with N900.