WinterMute has updated his Devkit for the DS, heres whats new:
updated gcc to 4.1.0
updated newlib to 1.14.0
added elf2flt to the available tools
updated ndstool to 1.29
ds crt0 updated to set some defaults for M3 compatibility
gba crt0 updated to remove new no$gba error
As always todays updates will be available through the devkitPro updater in due course. Please be patient while the sourceforge mirrors catch up. gcc 4.1 is a little more stringent with it's warnings and errors than previous releases. Some useful tips can be found at Ben Hutchings site.