DSi firmware 1.4 BLOCKES ALL FLASHCARTS
Yes its true has been confirmed by two sources (dsibrew and gbatemp).
What the update also does:
1. Facebook support for the DSi camera's (upload your pictures from the dsi to facebook.
2. a new version of the DSi web browser.
3. Linkers don't work now.
another horrible side note is that if you don't update you can kiss your DSiware shopping days to be over.
R4i Gold works on new ds fw1.4
R4i gold is the 1st to be working on the ds 1.4 fw
been like that for about a week now