hi.

there is nothing to prove. i will only show that the 23th will not work with all cards with 3G. if it works with your cards, it is good for you.

the 28th work in my n900 with my cards, also the GDI3SG. with the GDI3SG i ve got some probs with switching, but it works, when u use some terminal commands. the 28th works without terminal commands.

peace