@Stric, chaninc & ebsbow: in which version? Could it be 23548 by chance? Someone told me about it... and I think I forgot to remove the beta reminder in that version. I usually remove the beta reminder, but when doing lots of roms and lots of modifications...
Anyway, you could do it yourself simply by deleting this key:
I used yr 23549 rom. I deleted the key as you suggested, but it set itself again after soft-reset. How would you remove this beta reminder completely?